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Bridget Riley

Bridget Louise Riley (born 24 April 1931) is an English painter known for her op art paintings. She lives and works in London, Cornwall and the Vaucluse in France.

Early life and education
Riley was born on 24 April 1931 in Norwood, London. Her father, John Fisher Riley, originally from Yorkshire, had been an Army officer. He was a printer by trade and owned his own business. In 1938, he relocated the printing business, together with his family, to Lincolnshire.

At the beginning of World War II, her father, a member of the Territorial Army, was mobilised, and Riley, together with her mother and sister Sally, moved to a cottage in Cornwall. They shared the cottage with an aunt who had studied at Goldsmiths' College, London and Riley attended talks given by a range of retired teachers and non-professionals. She attended Cheltenham Ladies' College (1946–1948) and then studied art at Goldsmiths' College (1949–52), and later at the Royal College of Art (1952–55).

Between 1956 and 1959, she nursed her father, who had been involved in a serious car crash. She suffered a breakdown due to the deterioration of her father's health. After this she worked in a glassware shop. She eventually joined the J. Walter Thompson advertising agency, as an illustrator, where she worked part-time until 1962. The Whitechapel Gallery exhibition of Jackson Pollock in the winter of 1958 had an impact on her.

Her early work was figurative and semi-impressionist. Between 1958 and 1959, her work at the advertising agency showed her adoption of a style of painting based on the pointillist technique.

In 1959 Riley met the painter and art educator Maurice de Sausmarez at a residential summer school that he ran with Harry Thubron and Diane Thubron. He became her friend and mentor, inspiring her to look closer at Futurism and Divisionism and artists such as Klee and Seurat. Riley and de Sausmarez began an intense romantic relationship later that year and spent the summer of 1960 together painting in Italy where they visited the Venice Biennale which was hosting a large exhibition of Futurist art. Riley painted Pink landscape (1960), a pointillist study of the landscape near Radicofani during this holiday. When the relationship ended in autumn of the same year, Riley suffered a personal and artistic crisis, creating paintings that would lead to black and white Op Art works, such as Kiss (1961). She began to develop her signature Op Art style consisting of black and white geometric patterns that explore the dynamism of sight and produce a disorienting effect on the eye and produces movement and colour. Riley and de Sausmarez maintained a professional friendship until his death in 1969. Riley has often cited his role as an early mentor and de Sausmarez's monograph on Riley and her work was published after his death in 1970.

Early in her career, Riley worked as an art teacher for children from 1957 to 1958 at the Convent of the Sacred Heart, Harrow (now known as Sacred Heart Language College). At the Convent of the Sacred Heart, she began a basic design course. Later she worked at the Loughborough School of Art (1959), Hornsey College of Art, and Croydon College of Art (1962–64).

In 1961, she and her partner Peter Sedgley visited the Vaucluse plateau in the South of France, and acquired a derelict farm which they eventually transformed into a studio. Back in London, in the spring of 1962, Victor Musgrave of Gallery One held her first solo exhibition.

In 1968, Riley, with Sedgley and the journalist Peter Townsend, created the artists' organisation SPACE (Space Provision Artistic Cultural and Educational), with the goal of providing artists large and affordable studio space.

Seurat's way of seeing

Riley's mature style, developed during the 1960s, was influenced by sources like the French Neo-Impressionist artist Georges Seurat. In 2015–6, the Courtauld Gallery, in its exhibition Bridget Riley: Learning from Seurat, made the case for how Seurat's pointillism influenced her towards abstract painting. As a young artist in 1959, Riley saw The Bridge at Courbevoie, owned by the Courtauld, and decided to paint a copy. The resulting work has hung in Riley's studio ever since, barring its loan to the gallery for the exhibition, demonstrating in the opinion of the art critic Jonathan Jones "how crucial" Seurat was to her approach to art. Riley described her copy of Seurat's painting as a "tool", interpreted by Jones as meaning that she, like Seurat, practised art "as an optical science"; in his view, Riley "really did forge her optical style by studying Seurat", making the exhibition a real meeting of old and new. Jones comments that Riley investigated Seurat's pointillism by painting from a book illustration of Seurat's Bridge at an expanded scale to work out how his technique made use of complementary colours, and went on to create pointillist landscapes of her own, such as Pink Landscape (1960), painted soon after her Seurat study and portraying the "sun-filled hills of Tuscany" (and shown in the exhibition poster) which Jones writes could readily be taken for a post-impressionist original. In his view, Riley shares Seurat's "joy for life", a simple but radical delight in colour and seeing.

Work
It was during this period that Riley began to paint the black and white works for which she first became known. They present a great variety of geometric forms that produce sensations of movement or colour. In the early 1960s, her works were said to induce a variety of sensations in viewers, from seasickness to the feeling of sky diving. From 1961 to 1964, she worked with the contrast of black and white, occasionally introducing tonal scales of grey. Works in this style comprised her first 1962 solo show at Musgrave's Gallery One, as well as numerous subsequent shows. For example, in Fall, a single perpendiculars curve is repeated to create a field of varying optical frequencies. Visually, these works relate to many concerns of the period: a perceived need for audience participation (this relates them to the Happenings, which were common in this era), challenges to the notion of the mind-body duality which led Aldous Huxley to experiment with hallucinogenic drugs; concerns with a tension between a scientific future which might be very beneficial or might lead to a nuclear war; and fears about the loss of genuine individual experience in a Brave New World. Her paintings since 1961, have been executed by assistants. She meticulously plans her composition's design with preparatory drawings and collage techniques; her assistants paint the final canvases with great precision under her instruction.

Riley began investigating colour in 1967, the year in which she produced her first stripe painting. Following a major retrospective in the early 1970s, Riley began travelling extensively. After a trip to Egypt in the early 1980s, where she was inspired by colourful hieroglyphic decoration, Riley began to explore colour and contrast. In some works, lines of colour are used to create a shimmering effect, while in others the canvas is filled with tessellating patterns. Typical of these later colourful works is Shadow Play.

Some works are titled after particular dates, others after specific locations (for instance, Les Bassacs, the village near Saint-Saturnin-lès-Apt in the south of France where Riley has a studio).

Following a visit to Egypt in 1980–81, Riley created colours in what she called her 'Egyptian palette' and produced works such as the Ka and Ra series, which capture the spirit of the country, ancient and modern, and reflect the colours of the Egyptian landscape. Invoking the sensorial memory of her travels, the paintings produced between 1980 and 1985 exhibit Riley's free reconstruction of the restricted chromatic palette discovered abroad. In 1983, for the first time in fifteen years, Riley returned to Venice to once again study the paintings that form the basis of European colourism. Towards the end of the 1980s, Riley's work underwent a dramatic change with the reintroduction of the diagonal in the form of a sequence of parallelograms used to disrupt and animate the vertical stripes that had characterized her previous paintings. In Delos (1983), for example, blue, turquoise, and emerald hues alternate with rich yellows, reds and white.

Murals
Riley has painted temporary murals for the Tate, the Musée d'Art Moderne de la Ville de Paris and the National Gallery. In 2014, the Imperial College Healthcare Charity Art Collection commissioned her to make a permanent 56-metre mural for St Mary's Hospital, London; the work was installed on the 10th floor of the hospital's Queen Elizabeth Queen Mother Wing, joining two others she had painted more than 20 years earlier. Between 2017 and 2019 Riley completed a large wall painting for the Chinati Foundation, Marfa, Texas. This was the largest work she had yet undertaken, covering six of the building's eight walls. The mural referenced her Bolt of Colour of 1983, for the Royal Liverpool University Hospital and made use of a similar palette of Egyptian colours.

On the nature and role of the artist
Riley made the following comments regarding artistic work in her lecture Painting Now, 23rd William Townsend Memorial Lecture, Slade School of Fine Art, London, 26 November 1996: "Beckett interprets Proust as being convinced that such a text cannot be created or invented but can only be discovered within the artist himself, and that it is, as it were, almost a law of his own nature. It is his most precious possession, and, as Proust explains, the source of his innermost happiness. However, as can be seen from the practice of the great artists, although the text may be strong and durable and able to support a lifetime's work, it cannot be taken for granted and there is no guarantee of permanent possession. It may be mislaid or even lost, and retrieval is very difficult. It may lie dormant, and be discovered late in life after a long struggle, as with Mondrian or Proust himself. Why it should be that some people have this sort of text while others do not, and what 'meaning' it has, is not something which lends itself to argument. Nor is it up to the artist to decide how important it is, or what value it has for other people. To ascertain this is perhaps beyond even the capacities of an artist's own time."

Writer and curator
Riley has written on artists from Nicolas Poussin to Bruce Nauman. She co-curated Piet Mondrian: From Nature to Abstraction (with Sean Rainbird) at the Tate Gallery in 1996. Alongside art historian Robert Kudielka, Riley also served as curator of the 2002 exhibition "Paul Klee: The Nature of Creation", an exhibition at the Hayward Gallery in London in 2002. In 2010, she curated an artists choice show at the National Gallery in London, choosing large figure paintings by Titian, Veronese, El Greco, Rubens, Poussin, and Paul Cézanne.

Exhibitions
In 1965, Riley exhibited in the Museum of Modern Art in New York City show, The Responsive Eye (created by curator William C. Seitz); the exhibition which first drew worldwide attention to her work and the Op Art movement. Her painting Current, 1964, was reproduced on the cover of the show's catalogue. The absence of copyright protection for artists in the United States at the time, saw her work exploited by commercial concerns which caused her to become disillusioned with such exhibitions. Legislation was eventually passed, following an initiative by New York-based artists, in 1967.

She participated in documentas IV (1968) and VI (1977). In 1968, Riley represented Great Britain in the Venice Biennale, where she was the first British contemporary painter, and the first woman, to be awarded the International Prize for painting. Her disciplined work lost ground to the assertive gestures of the Neo-Expressionists in the 1980s, but a 1999 show at the Serpentine Gallery of her early paintings triggered a resurgence of interest in her optical experiments. "Bridget Riley: Reconnaissance", an exhibition of paintings from the 1960s and 1970s, was presented at Dia:Chelsea in 2000. In 2001, she participated in Site Santa Fe, and in 2003 the Tate Britain organised a major Riley retrospective. In 2005, her work was featured at Gallery Oldham. Between November 2010 and May 2011, her exhibition "Paintings and Related Work" was presented at the National Gallery, London.

In June and July 2014, the retrospective show "Bridget Riley: The Stripe Paintings 1961–2014" was presented at the David Zwirner Gallery in London. In July and August 2015, the retrospective show "Bridget Riley: The Curve Paintings 1961–2014" was presented at the De La Warr Pavilion in Bexhill-on-Sea.

In November 2015, the exhibition Bridget Riley opened at David Zwirner in New York. The show features paintings and works on paper by the artist from 1981 to present; the fully illustrated catalogue features an essay by the art historian Richard Shiff and biographical notes compiled by Robert Kudielka.

A retrospective exhibition at the Scottish National Gallery, in partnership with the Hayward Gallery, ran from June to September 2019. It showed early paintings and drawings, black-and-white works of the 1960s, and studies that reveal her working methods. This major exhibition of her work, spanning her 70-year career, was also shown at Hayward Gallery from October 2019 to January 2020.

Riley's work was included in the 2021 exhibition Women in Abstraction at the Centre Pompidou.

In May 2023 Riley's first ceiling painting, Verve, was unveiled at The British School at Rome.

Public collections

 * Abbot Hall Art Gallery, Kendal
 * Arts Council Collection, London
 * British Council Collection, London
 * Ferens Art Gallery, Hull
 * Fitzwilliam Museum, Cambridge
 * Glasgow Museums Resource Centre, Glasgow
 * Government Art Collection, London
 * Leeds Art Gallery
 * Maclaurin Art Gallery at Rozelle House, Ayr
 * Manchester Art Gallery
 * Morley College, London
 * Museum Boijmans Van Beuningen, Rotterdam
 * Museum of Fine Arts, Boston
 * Museum of Modern Art, New York
 * National Museum Cardiff, Amgueddfa Cymru – Museum Wales
 * Nelson-Atkins Museum of Art, Kansas City
 * Ruth Borchard Collection
 * Southampton City Art Gallery
 * Tate, London
 * University of Warwick
 * Walker Art Gallery, Liverpool
 * Whitworth, Manchester

Influence

Artists Ross Bleckner and Philip Taaffe made paintings paying homage to the work of Riley in the 80s. In 2013, Riley claimed that a wall-sized, black-and-white checkerboard work by Tobias Rehberger plagiarised her painting Movement in Squares and asked for it to be removed from display at the Berlin State Library's reading room.

Recognition
In 1963, Riley was awarded the AICA Critics Prize as well as the John Moores, Liverpool Open Section Prize. A year later, she received a Peter Stuyvesant Foundation Travel bursary. In 1968, she received an International Painting Prize at the Venice Biennale. In 1974, she was named a Commander of the Most Excellent Order of the British Empire. Riley has been given honorary doctorates by Oxford (1993) and Cambridge (1995). In 2003, she was awarded the Praemium Imperiale, and, in 1998, she became one of only 65 Members of the Order of the Companions of Honour in the Commonwealth. As a board member of the National Gallery in the 1980s, she blocked Margaret Thatcher's plan to give an adjoining piece of property to developers and thus helped ensure the eventual construction of the museum's Sainsbury Wing. Riley has also received the Goslarer Kaiserring of the city of Goslar in 2009 and the 12th Rubens Prize of Siegen in 2012. Also in 2012, she became the first woman to receive the Sikkens Prize, the Dutch art prize recognising the use of colour.

Philanthropy
Riley is a Patron of Paintings in Hospitals, a charity established in 1959 to provide art for health and social care in England, Wales and Northern Ireland.

Between 1987 and 2014, she created three murals across the eighth, ninth and tenth floors of the Queen Elizabeth Queen Mother Wing, St Mary's Hospital, London.

In 2017, alongside Yoko Ono and Tracey Emin, Riley donated artworks to an auction to raise money for Modern Art Oxford.

Since 2016, The Bridget Riley Art Foundation has funded the Bridget Riley Fellowship at The British School at Rome.

Art market

 * 2006, Untitled (Diagonal Curve) (1966), a black-and-white canvas of dizzying curves, was bought by Jeffrey Deitch at Sotheby's for $2.1 million, nearly three times its $730,000 high estimate and also a record for the artist.

 * February 2008, the artist's dotted canvas Static 2 (1966) brought £1,476,500 ($2.9 million), far exceeding its £900,000 ($1.8 million) high estimate, at Christie's in London.

 * July 2008, Chant 2 (1967), part of the trio shown in the Venice Biennale, went to a private American collector for £2,561,250 ($5.1 million), at Sotheby's.

 * March 2022, Gala (1974) sold for £4,362,000 ($5.8 million) at the 2022 Modern British Art Evening Sale in Christie's, London.

title: Bridget Riley


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John Sellers (scientist)

John Sellers (1728 – February 2, 1804) was an American scientist, politician and surveyor from Pennsylvania. He served in the Pennsylvania Provincial Assembly, representing Chester County from 1767 to 1771. He also served in the Pennsylvania Senate, representing Delaware and Philadelphia counties and the city of Philadelphia from 1790 to 1794. He was a founding member of the American Philosophical Society and observed the Transit of Venus in 1769.

Early life
John Sellers was born on September (or November) 19, 1728, at Sellers Hall in Upper Darby Township, Pennsylvania, to Sarah (née Smith) and Samuel Sellers. His grandfather Samuel Sellers worked as a weaver and emigrated from Derbyshire.

Surveying career
Sellers worked as a weaver. He was appointed surveyor by the governor to run a line from Schuylkill to Lancaster to prepare for the Strasburg Road. He was appointed as road commissioner of the Strasburg Road. He was appointed as a surveying engineer of the Union Canal. He was also involved in the Schuylkill-Susquehanna canal study of 1783 and the boundary commission for the newly created Delaware County in 1789.

American Philosophical Society
Sellers was one of the original members of the American Philosophical Society. He joined the organization in 1768. Sellers and David Rittenhouse and others were members of the society's committee that observed the Transit of Venus in 1769 and reported their observations for the benefit of science.

Political career
Sellers was a Federalist. He was a member of the Pennsylvania Provincial Assembly (later the Pennsylvania House of Representatives), representing Chester County, from 1767 to 1771. He was appointed one of the Boston Port Bill Committee and was a deputy in the first Provincial Conference of Representatives at Philadelphia on July 14, 1774. These activities on behalf of the Revolution and particularly Sellers' role in signing the Continental currency led to his disownment by the Society of Friends.

He was a member of the constitutional convention of 1789, representing Delaware. He served in the first session of the Pennsylvania Senate. He represented Delaware and Philadelphia counties and Philadelphia from 1790 to 1794. He was appointed by Governor Thomas Mifflin as associate judge of the Delaware County Court, but declined the appointment.

Personal life
Sellers grandson James Sellers was an inventor and had a wire weaving business. His great-great grandson James C. Sellers was a Philadelphia lawyer.

Sellers died on February 2, 1804, in Upper Darby. He was interred at Darby Friends Cemetery.

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: John Sellers (scientist)


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Ruckus Society

The Ruckus Society is a nonprofit organization that sponsors skill-sharing and non-violent direct action training, strategy & consultation for activists and organizers from frontline and impacted communities working on social justice, human rights, migrant rights, workers rights and environmental justice. It was founded by Mike Roselle and Twilly Cannon.

Background
In an interview with John Sellers, former executive director and current president of The Ruckus Society, stated that Roselle and Cannon founded The Ruckus Society in the mid-1990s based on the "direct-action model" they learned from Greenpeace.

The name of the organization, explains Sellers, is not an acronym but refers to the term "ruckus", meaning "a loud, angry interruption, a hullabaloo, a disruption."

The Ruckus Society's mission is to provide training in classic nonviolent direct action and civil disobedience tactics in the context of community-driven campaigns, including creative resistance, urban rappelling, media & communications, and blockades with and without gear.

The organization consists of a small core group of staff members, and a larger team of volunteers in close contact with the leadership. In 2002, the organization had a staff of four full-time employees, roughly thirty volunteers, over 120 people acting as trainers, and over 2,000 graduates of their training opportunities. Volunteers designs custom trainings and camps based on the specific needs and campaigns of the activists, and use popular education techniques to allow participants to discover the direct action knowledge they already possess. According to leadership, The Ruckus Society provides, "non-violence training, media training, direct action planning and strategy, and scouting."

Services and collaborations
The Ruckus Society has co-sponsored projects including the Not Your Soldier Project (NYS), a counter-recruitment effort with the War Resisters League, and the Indigenous Peoples' Power Project (IP3), bringing together indigenous youth organizers from all over the country.

In 2006, Ruckus teamed up with Working Assets for an Election Protection project. Together with Global Exchange and Rainforest Action Network, they worked against Ford Motor Company and later other auto-manufacturers.

The Ruckus Society is a member of numerous coalitions efforts, and have performed actions for Wal-Mart Watch and others. The group has provided training to Greenpeace, Patagonia, Inc., the California Faculty Association, United Students Against Sweatshops, Students for Bhopal, Student/Farmworker Alliance, the Silicon Valley Toxics Coalition, Students for a Free Tibet and Detroit Summer.

The Ruckus Society helped bottomline organizing for the US Social Forum in Detroit in 2010 and hosted a Migrant Rights Action Camp with NDLON at the Highlander Center in 2011.

Leadership
John Sellers was the executive director of the organization for 8 years, through the World Trade Organization protests in Seattle in 1999, the creation of IP3 and NYS and his own $2 million bail. Adrienne Maree Brown came on as executive director in 2006, the first woman of color to lead the organization.

The organization created a co-directorship model in 2010 and in 2013 hired a third co-director. Leadership in the organization comes from the network of trainers and the many movements from which they come.

Impact
The Ruckus Society is made up of three staff and a network of over 150 action trainers and strategists located primarily in the United States but also distributed throughout the world.

As a movement support organization, The Ruckus Society has trained thousands of organizers and activists throughout the years in non-violent direct action and creative resistance, including those in environmental justice, migrant rights, education justice, forest defense, indigenous rights, workers rights, youth and criminal justice, and eviction defense.

Funding
According to research conducted by social movement scholar Edouard Morena, "over 95 per cent of the Ruckus Society's revenues come from 'direct public support'" and private grants, not governmental grants. This type of funding includes donations for individuals, foundations, and other organizations. In 2000, the organization had a budget of $370,000. Major funders of The Ruckus Society have included the Turner Foundation, the Ben and Jerry's Foundation, and the Ecology Center Inc.

Criticism
In its early years, The Ruckus Society was criticized for being composed of largely privileged white activists, which has been acknowledged. This led the leadership to attempt to diversify its causes and leadership. Since the mid-2000s The Ruckus Society has collaborated with numerous groups representing Indigenous environmental concerns, migrant rights, and Detroit-based environmental groups.

The organization has also been critiqued for its lack of transparency around funding sources. This has prompted attempts at investigating the sources of their funding.

The Ruckus Society has been the target of conservative outlets who describe the group as violent anarchists, and as being responsible for training criminal activists who participate in vandalism and destruction of private property.

title: Ruckus Society


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AFL-CIO

The American Federation of Labor and Congress of Industrial Organizations (AFL-CIO) is a national trade union center that is the largest federation of unions in the United States. It is made up of 60 national and international unions, together representing more than 12 million active and retired workers. The AFL-CIO engages in substantial political spending and activism, typically in support of progressive and pro-labor policies.

The AFL-CIO was formed in 1955 when the American Federation of Labor and the Congress of Industrial Organizations merged after a long estrangement. Union membership in the US peaked in 1979, when the AFL-CIO's affiliated unions had nearly twenty million members. From 1955 until 2005, the AFL-CIO's member unions represented nearly all unionized workers in the United States. Several large unions split away from AFL-CIO and formed the rival Change to Win Federation in 2005, although a number of those unions have since re-affiliated, and many locals of Change to Win are either part of or work with their local central labor councils. The largest unions currently in the AFL-CIO are the American Federation of Teachers (AFT) with approximately 1.7 million members, American Federation of State, County and Municipal Employees (AFSCME), with approximately 1.4 million members, and United Food and Commercial Workers with 1.2 million members.

Membership
The AFL-CIO is a federation of international labor unions. As a voluntary federation, the AFL-CIO has little authority over the affairs of its member unions except in extremely limited cases (such as the ability to expel a member union for corruption and enforce resolution of disagreements over jurisdiction or organizing). As of May 2023, the AFL-CIO had 60 member unions representing 12.5 million members.

Political activities
The AFL-CIO was a major component of the New Deal Coalition that dominated politics into the mid-1960s. Although it has lost membership, finances, and political clout since 1970, it remains a major player on the liberal side of national politics, with a great deal of activity in lobbying, grassroots organizing, coordinating with other liberal organizations, fund-raising, and recruiting and supporting candidates around the country.

In recent years the AFL-CIO has concentrated its political efforts on lobbying in Washington and the state capitals, and on "GOTV" (get-out-the-vote) campaigns in major elections. For example, in the 2010 midterm elections, it sent 28.6 million pieces of mail. Members received a "slate card" with a list of union endorsements matched to the member's congressional district, along with a "personalized" letter from President Obama emphasizing the importance of voting. In addition, 100,000 volunteers went door-to-door to promote endorsed candidates to 13 million union voters in 32 states.

Governance
The AFL-CIO is governed by its members, who meet in a quadrennial convention. Each member union elects delegates, based on proportional representation. The AFL-CIO's state federations, central and local labor councils, constitutional departments, and constituent groups are also entitled to delegates. The delegates elect officers and vice presidents, debate and approve policy, and set dues.

Annual meetings
From 1951 to 1996, the Executive Council held its winter meeting in the resort town of Bal Harbour, Florida. The meeting at the Bal Harbour Sheraton has been the object of frequent criticism, including over a labor dispute at the hotel itself.

Citing image concerns, the council changed the meeting site to Los Angeles. However, the meeting was moved back to Bal Harbour several years later. The 2012 meeting was held in Orlando, Florida.

State and local bodies
The AFL-CIO constitution permits international unions to pay state federation and central labor council (CLC) dues directly, rather than have each local or state federation pay them. This relieves each union's state and local affiliates of the administrative duty of assessing, collecting and paying the dues. International unions assess the AFL-CIO dues themselves, and collect them on top of their own dues-generating mechanisms or simply pay them out of the dues the international collects. But not all international unions pay their required state federation and CLC dues.

Constitutional departments
One of the most well-known departments was the Industrial Union Department (IUD). It had been constitutionally mandated by the new AFL-CIO constitution created by the merger of the AFL and CIO in 1955, as CIO unions felt that the AFL's commitment to industrial unionism was not strong enough to permit the department to survive without a constitutional mandate. For many years, the IUD was a de facto organizing department in the AFL-CIO. For example, it provided money to the near-destitute American Federation of Teachers (AFT) as it attempted to organize the United Federation of Teachers in 1961. The organizing money enabled the AFT to win the election and establish its first large collective bargaining affiliate. For many years, the IUD remained rather militant on a number of issues.

There are six AFL-CIO constitutionally mandated departments:
 * Building and Construction Trades Department, AFL-CIO
 * Maritime Trades Department, AFL-CIO
 * Metal Trades Department, AFL-CIO
 * Department for Professional Employees, AFL-CIO
 * Transportation Trades Department, AFL-CIO
 * Union Label Department, AFL-CIO

Constituency groups
Constituency groups are nonprofit organizations chartered and funded by the AFL-CIO as voter registration and mobilization bodies. These groups conduct research, host training and educational conferences, issue research reports and publications, lobby for legislation and build coalitions with local groups. Each constituency group has the right to sit in on AFL-CIO executive council meetings, and to exercise representational and voting rights at AFL-CIO conventions.

The AFL-CIO's seven constituency groups include the A. Philip Randolph Institute, the AFL-CIO Union Veterans Council, the Asian Pacific American Labor Alliance, the Coalition of Black Trade Unionists, the Coalition of Labor Union Women, the Labor Council for Latin American Advancement and Pride at Work.

Allied organizations
The Working for America Institute started out as a department of the AFL-CIO. Established in 1958, it was previously known as the Human Resources Development Institute (HRDI). John Sweeney renamed the department and spun it off as an independent organization in 1998 to act as a lobbying group to promote economic development, develop new economic policies, and lobby Congress on economic policy. The American Center for International Labor Solidarity started out as the Free Trade Union Committee (FTUC), which internationally promoted free labor-unions.

Other organizations that are allied with the AFL-CIO include:
 * Alliance for Retired Americans
 * Solidarity Center
 * American Rights at Work
 * International Labor Communications Association
 * Jobs with Justice
 * Labor Heritage Foundation
 * Labor and Working-Class History Association
 * National Day Laborer Organizing Network
 * United Students Against Sweatshops
 * Working America
 * Working for America Institute
 * Ohio Organizing Collaborative

Programs
Programs are organizations established and controlled by the AFL-CIO to serve certain organizational goals. Programs of the AFL-CIO include the AFL-CIO Building Investment Trust, the AFL-CIO Employees Federal Credit Union, the AFL-CIO Housing Investment Trust, the National Labor College and Union Privilege.

International policy
The AFL-CIO is affiliated to the Brussels-based International Trade Union Confederation, formed November 1, 2006. The new body incorporated the member organizations of the International Confederation of Free Trade Unions, of which the AFL-CIO had long been part. The AFL-CIO had had a very active foreign policy in building and strengthening free trade unions. During the Cold War, it vigorously opposed Communist unions in Latin America and Europe. In opposing Communism, it helped split the CGT in France and helped create the anti-Communist Force Ouvrière.

According to the cybersecurity firm Area 1, hackers working for the People's Liberation Army Strategic Support Force compromised the networks of the AFL-CIO in order to gain information on negotiations for the Trans-Pacific Partnership.

Civil rights
The AFL-CIO has a long relationship with civil rights struggles. One of the major points of contention between the AFL and the CIO, particularly in the era immediately after the CIO split off, was the CIO's willingness to include black workers (excluded by the AFL in its focus on craft unionism). Later, blacks would also criticize the CIO for abandoning their interests, particularly after the merger with the AFL.

In 1961, Martin Luther King Jr. gave a speech titled "If the Negro Wins, Labor Wins" to the organization's convention in Bal Harbour, Florida. King hoped for a coalition between civil rights and labor that would improve the situation for the entire working class by ending racial discrimination. However, King also criticized the AFL-CIO for its tolerance of unions that excluded black workers. "I would be lacking in honesty," he told the delegates of the 1965 Illinois AFL-CIO Convention during his keynote address, "if I did not point out that the labor movement of thirty years ago did more in that period for civil rights than labor is doing today...Our combined strength is potentially enormous, but we have not used a fraction of it for our own good or the needs of society as a whole." King and the AFL-CIO diverged further in 1967, when King announced his opposition to the Vietnam War, which the AFL-CIO strongly supported. The AFL-CIO endorsed the Civil Rights Act of 1964.

Police violence
In the 21st century, the AFL-CIO has been criticized by campaigners against police violence for its affiliation with the International Union of Police Associations (IUPA). On May 31, 2020, the AFL-CIO offices in Washington, DC, were set on fire during the George Floyd protests taking place in the city. In response, AFL-CIO president Richard Trumka condemned both the murder of George Floyd and the destruction of the offices, but did not address demands to end the organization's affiliation with the IUPA.

Triumph and disaster: the politics of the 1960s
After the smashing electoral victory of President Lyndon B. Johnson in 1964, the heavily Democratic Congress passed a raft of liberal legislation. Labor union leaders claimed credit for the widest range of liberal laws since the New Deal era, including the Civil Rights Act of 1964; the Voting Rights Act of 1965; the War on Poverty; aid to cities and education; increased Social Security benefits; and Medicare for the elderly. The 1966 elections were an unexpected disaster, with defeats for many of the more liberal Democrats. According to Alan Draper, the AFL-CIO Committee on Political Action (COPE) was the main electioneering unit of the labor movement. It ignored the white backlash against civil rights. The COPE assumed falsely that union members were interested in issues of greatest salience to union leadership, but polls showed this was not true. The members were much more conservative. The younger ones were deeply concerned about taxes and crime, and the older ones had more conservative social views. Furthermore, a new issue—the War in Vietnam—was bitterly splitting the New Deal coalition into hawks (led by Johnson and Vice-President Hubert Humphrey) and doves (led by Senators Eugene McCarthy and Robert Kennedy).

New Unity Partnership
In 2003, the AFL-CIO began an intense internal debate over the future of the labor movement in the United States with the creation of the New Unity Partnership (NUP), a loose coalition of some of the AFL-CIO's largest unions. This debate intensified in 2004, after the defeat of labor-backed candidate John Kerry in the November 2004 US presidential election. The NUP's program for reform of the federation included reduction of the central bureaucracy, more money spent on organizing new members rather than on electoral politics, and a restructuring of unions and locals, eliminating some smaller locals and focusing more along the lines of industrial unionism.

In 2005, the NUP dissolved and the Change to Win Federation (CtW) formed, threatening to secede from the AFL-CIO if its demands for major reorganization were not met. As the AFL-CIO prepared for its 50th anniversary convention in late July, three of the federations' four largest unions announced their withdrawal from the federation: the Service Employees International Union (SEIU), the International Brotherhood of Teamsters ("The Teamsters"), and the United Food and Commercial Workers International Union (UFCW). UNITE HERE disaffiliated in mid-September 2005, the United Farm Workers left in January 2006, and the Laborers' International Union of North America disaffiliated on June 1, 2006.

Two unions later left CtW and rejoined the AFL-CIO. After a bitter internal leadership dispute that involved allegations of embezzlement and accusations that SEIU was attempting to raid the union, a substantial number of UNITE HERE members formed their own union (Workers United) while the remainder of UNITE HERE reaffiliated with the AFL-CIO on September 17, 2009. The Laborers' International Union of North America said on August 13, 2010, that it would also leave Change to Win and rejoin the AFL-CIO in October 2010.

ILWU disaffiliation
In August 2013, the International Longshore and Warehouse Union (ILWU) disaffiliated from the AFL-CIO. The ILWU said that members of other AFL-CIO unions were crossing its picket lines, and the AFL-CIO had done nothing to stop it. The ILWU also cited the AFL-CIO's willingness to compromise on key policies such as labor law reform, immigration reform, and health care reform. The longshoremen's union said it would become an independent union.

Norfolk Southern proxy fight
In 2024, AFL-CIO voiced its opposition to an investor-led plan at Norfolk Southern Railway to replace the company's top management and several board members. Organized labor is divided on the issue, which is the major sticking point of a proxy battle between NS management and investors ahead of a May 9, 2024 shareholder meeting. AFL-CIO came out and voiced its support for Norfolk's CEO Alan Shaw, citing concerns about safety, service, and job losses. The union criticized the proposal to replace Shaw and implement a system known as precision railroading.

Presidents

 * George Meany (1955–1979)
 * Lane Kirkland (1979–1995)
 * Thomas R. Donahue (1995)
 * John J. Sweeney (1995–2009)
 * Richard Trumka (2009–2021)
 * Liz Shuler (2021–present)

Secretary-treasurers

 * 1955: William F. Schnitzler
 * 1969: Lane Kirkland
 * 1979: Thomas R. Donahue
 * 1995: Barbara Easterling
 * 1995: Richard Trumka
 * 2009: Liz Shuler
 * 2021: Fred Redmond

Executive vice presidents

 * 1995–2007: Linda Chavez-Thompson
 * 2007–2013: Arlene Holt Baker
 * 2013–2022: Tefere Gebre

Constitution

 * Constitution of the AFL-CIO, as amended at the Twenty-Fifth Constitutional Convention, July 25-28, 2005. Accessed January 15, 2007.

Archives
In 2013, the AFL-CIO named the University of Maryland Libraries as their official repository, succeeding the closed National Labor College. The archival and library holdings were transferred in 2013, dating from the establishment of the AFL (1881), and offer almost complete records from the founding of the AFL-CIO (1955). Among the estimated 40 million documents are AFL-CIO Department records, trade department records, international union records, union programs, union organizations with allied or affiliate relationships with the AFL-CIO, and personal papers of union leaders. Extensive photo documentation of labor union activities from the 1940s to the present are in the photographic negative and digital collections. Additionally, collections of graphic images, over 10,000 audio tapes, several hundred films and videotapes, and over 2,000 artifacts are available for public research and study.

 * AFL-CIO Region 9 Records. circa 1955–2000. 14.00 cubic feet (14 boxes). At the Labor Archives of Washington, University of Washington Libraries Special Collections.
 * Preliminary Guide to the AFL-CIO King County Labor Council of Washington Provisional Trades Section Records. 1935–1971. .42 cubic foot (1 box). At the Labor Archives of Washington, University of Washington Libraries Special Collections.
 * AFL-CIO, Washington State Labor Council Records. 1880–2010. 187.18 cubic feet. At the Labor Archives of Washington, University of Washington Libraries Special Collections.
 * Washington State Federation of Labor Records. 1881–1967. 45.44 cubic feet (including 2 microfilm reels, 1 package, and 1 vertical file). At the Labor Archives of Washington, University of Washington Libraries Special Collections.
 * Antonia Bohan 1995 AFL-CIO Convention Delegate Collection. 1995–1996. 0.39 cubic feet (1 box and 1 oversized folder). At University of Washington Libraries, Special Collections. Contains material collected by Bohan as a Service Employees International Union delegate to the AFL-CIO convention that elected John Sweeney president in 1995.
 * Jackie Boschok Papers. 1979–2013. 16.32 cubic feet (22 boxes). At University of Washington Libraries, Special Collections. Contains records from AFL-CIO National Community Services Documents, AFL-CIO Resources, and AFL-CIO Working Women Working Together Conference Records.
 * Phil Lelli Papers. 1933–2004. 10.45 cubic feet (11 boxes and 1 vertical file). At University of Washington Libraries, Special Collections. Contains "Principles of Autonomy & Jurisdictional Intergrity within the AFL-CIO".
 * George Meany Memorial AFL-CIO Archive. Approximately 40 million documents. At University of Maryland Libraries, Special Collections and University Archives. Contains material that will help researchers better understand pivotal social movements in this country, including those to gain rights for women, children and minorities.
 * AFL and AFL-CIO International Affairs Department, AFL Advisors to the United Nations Economic and Social Council records, at the University of Maryland libraries. Contains correspondence between AFL advisors and the United Nations Economic and Social Council.
 * AFL-CIO Merger Oral History Project collection, at the University of Maryland Libraries. Contains staff oral histories that explores the history of the 1955 merger: its challenges and successes.

title: AFL-CIO


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Intravenous therapy

Intravenous therapy (abbreviated as IV therapy) is a medical technique that administers fluids, medications and nutrients directly into a person's vein. The intravenous route of administration is commonly used for rehydration or to provide nutrients for those who cannot, or will not—due to reduced mental states or otherwise—consume food or water by mouth. It may also be used to administer medications or other medical therapy such as blood products or electrolytes to correct electrolyte imbalances. Attempts at providing intravenous therapy have been recorded as early as the 1400s, but the practice did not become widespread until the 1900s after the development of techniques for safe, effective use.

The intravenous route is the fastest way to deliver medications and fluid replacement throughout the body as they are introduced directly into the circulatory system and thus quickly distributed. For this reason, the intravenous route of administration is also used for the consumption of some recreational drugs. Many therapies are administered as a "bolus" or one-time dose, but they may also be administered as an extended infusion or drip. The act of administering a therapy intravenously, or placing an intravenous line ("IV line") for later use, is a procedure which should only be performed by a skilled professional. The most basic intravenous access consists of a needle piercing the skin and entering a vein which is connected to a syringe or to external tubing. This is used to administer the desired therapy. In cases where a patient is likely to receive many such interventions in a short period (with consequent risk of trauma to the vein), normal practice is to insert a cannula which leaves one end in the vein, and subsequent therapies can be administered easily through tubing at the other end. In some cases, multiple medications or therapies are administered through the same IV line.

IV lines are classified as "central lines" if they end in a large vein close to the heart, or as "peripheral lines" if their output is to a small vein in the periphery, such as the arm. An IV line can be threaded through a peripheral vein to end near the heart, which is termed a "peripherally inserted central catheter" or PICC line. If a person is likely to need long-term intravenous therapy, a medical port may be implanted to enable easier repeated access to the vein without having to pierce the vein repeatedly. A catheter can also be inserted into a central vein through the chest, which is known as a tunneled line. The specific type of catheter used and site of insertion are affected by the desired substance to be administered and the health of the veins in the desired site of insertion.

Placement of an IV line may cause pain, as it necessarily involves piercing the skin. Infections and inflammation (termed phlebitis) are also both common side effects of an IV line. Phlebitis may be more likely if the same vein is used repeatedly for intravenous access, and can eventually develop into a hard cord which is unsuitable for IV access. The unintentional administration of a therapy outside a vein, termed extravasation or infiltration, may cause other side effects.

Medical uses
Intravenous (IV) access is used to administer medications and fluid replacement which must be distributed throughout the body, especially when rapid distribution is desired. Another use of IV administration is the avoidance of first-pass metabolism in the liver. Substances that may be infused intravenously include volume expanders, blood-based products, blood substitutes, medications and nutrition.

Fluid solutions
Fluids may be administered as part of "volume expansion", or fluid replacement, through the intravenous route. Volume expansion consists of the administration of fluid-based solutions or suspensions designed to target specific areas of the body which need more water. There are two main types of volume expander: crystalloids and colloids. Crystalloids are aqueous solutions of mineral salts or other water-soluble molecules. Colloids contain larger insoluble molecules, such as gelatin. Blood itself is considered a colloid.

The most commonly used crystalloid fluid is normal saline, a solution of sodium chloride at 0.9% concentration, which is isotonic with blood. Lactated Ringer's (also known as Ringer's lactate) and the closely related Ringer's acetate, are mildly hypotonic solutions often used in those who have significant burns. Colloids preserve a high colloid osmotic pressure in the blood, while, on the other hand, this parameter is decreased by crystalloids due to hemodilution. Crystalloids generally are much cheaper than colloids.

Buffer solutions which are used to correct acidosis or alkalosis are also administered through intravenous access. Lactated Ringer's solution used as a fluid expander or base solution to which medications are added also has some buffering effect. Another solution administered intravenously as a buffering solution is sodium bicarbonate.

Medication and treatment
Medications may be mixed into the fluids mentioned above, commonly normal saline, or dextrose solutions. Compared with other routes of administration, such as oral medications, the IV route is the fastest way to deliver fluids and medications throughout the body. For this reason, the IV route is commonly preferred in emergency situations or when a fast onset of action is desirable. In extremely high blood pressure (termed a hypertensive emergency), IV antihypertensives may be given to quickly decrease the blood pressure in a controlled manner to prevent organ damage. In atrial fibrillation, IV amiodarone may be administered to attempt to restore normal heart rhythm. IV medications can also be used for chronic health conditions such as cancer, for which chemotherapy drugs are commonly administered intravenously. In some cases, such as with vancomycin, a loading or bolus dose of medicine is given before beginning a dosing regimen to more quickly increase the concentration of medication in the blood.

The bioavailability of an IV medication is by definition 100%, unlike oral administration where medication may not be fully absorbed, or may be metabolized prior to entering the bloodstream. For some medications, there is virtually zero oral bioavailability. For this reason certain types of medications can only be given intravenously, as there is insufficient uptake by other routes of administration, such is the case of severe dehydration where the patient is required to be treated via IV therapy for a quick recovery. The unpredictability of oral bioavailability in different people is also a reason for a medication to be administered IV, as with furosemide. Oral medications also may be less desirable if a person is nauseous or vomiting, or has severe diarrhea, as these may prevent the medicine from being fully absorbed from the gastrointestinal tract. In these cases, a medication may be given IV only until the patient can tolerate an oral form of the medication. The switch from IV to oral administration is usually performed as soon as viable, as there is generally cost and time savings over IV administration. Whether a medication can be potentially switched to an oral form is sometimes considered when choosing appropriate antibiotic therapy for use in a hospital setting, as a person is unlikely to be discharged if they still require IV therapy.

Some medications, such as aprepitant, are chemically modified to be better suited for IV administration, forming a prodrug such as fosaprepitant. This can be for pharmacokinetic reasons or to delay the effect of the drug until it can be metabolized into the active form.

Blood products
A blood product (or blood-based product) is any component of blood which is collected from a donor for use in a blood transfusion. Blood transfusions can be used in massive blood loss due to trauma, or can be used to replace blood lost during surgery. Blood transfusions may also be used to treat a severe anaemia or thrombocytopenia caused by a blood disease. Early blood transfusions consisted of whole blood, but modern medical practice commonly uses only components of the blood, such as packed red blood cells, fresh frozen plasma or cryoprecipitate.

Nutrition
Parenteral nutrition is the act of providing required nutrients to a person through an intravenous line. This is used in people who are unable to get nutrients normally, by eating and digesting food. A person receiving parenteral nutrition will be given an intravenous solution which may contain salts, dextrose, amino acids, lipids and vitamins. The exact formulation of a parenteral nutrition used will depend on the specific nutritional needs of the person it is being given to. If a person is only receiving nutrition intravenously, it is called total parenteral nutrition (TPN), whereas if a person is only receiving some of their nutrition intravenously it is called partial parenteral nutrition (or supplemental parenteral nutrition).

Imaging
Medical imaging relies on being able to clearly distinguish internal parts of the body from each other. One way this is accomplished is through the administration of a contrast agent into a vein. The specific imaging technique being employed will determine the characteristics of an appropriate contrast agent to increase visibility of blood vessels or other features. Common contrast agents are administered into a peripheral vein from which they are distributed throughout the circulation to the imaging site.

Use in sports
IV rehydration was formerly a common technique for athletes. The World Anti-Doping Agency prohibits intravenous injection of more than 100 mL per 12 hours, except under a medical exemption. The United States Anti-Doping Agency notes that, as well as the dangers inherent in IV therapy, "IVs can be used to change blood test results (such as hematocrit where EPO or blood doping is being used), mask urine test results (by dilution) or by administering prohibited substances in a way that will more quickly be cleared from the body in order to beat an anti-doping test". Players suspended after attending "boutique IV clinics" which offer this sort of treatment include footballer Samir Nasri in 2017 and swimmer Ryan Lochte in 2018.

Use for hangover treatment
In the 1960s, John Myers developed the "Myers' cocktail", a non-prescription IV solution of vitamins and minerals marketed as a hangover cure and general wellness remedy. The first "boutique IV" clinic, offering similar treatments, opened in Tokyo in 2008. These clinics, whose target market was described by Elle as "health nuts who moonlight as heavy drinkers", have been publicized in the 2010s by glamorous celebrity customers. Intravenous therapy is also used in people with acute ethanol toxicity to correct electrolyte and vitamin deficiencies which arise from alcohol consumption.

Others
In some countries, non-prescription intravenous glucose is used to improve a person's energy, but is not a part of routine medical care in countries such as the United States where glucose solutions are prescription drugs. Improperly administered intravenous glucose (called "ringer" ), such as that which is administered clandestinely in store-front clinics, poses increased risks due to improper technique and oversight. Intravenous access is also sometimes used outside of a medical setting for the self-administration of recreational drugs, such as heroin and fentanyl, cocaine, methamphetamine, DMT, and others.

Intravenous therapy is also used for veterinary patient management.

Bolus
Some medications can be administered as a bolus dose, which is called an "IV push". A syringe containing the medication is connected to an access port in the primary tubing and the medication is administered through the port. A bolus may be administered rapidly (with a fast depression of the syringe plunger) or may be administered slowly, over the course of a few minutes. The exact administration technique depends on the medication and other factors. In some cases, a bolus of plain IV solution (i.e. without medication added) is administered immediately after the bolus to further force the medicine into the bloodstream. This procedure is termed an "IV flush". Certain medications, such as potassium, are not able to be administered by IV push due to the extremely rapid onset of action and high level of effects.

Infusion
An infusion of medication may be used when it is desirable to have a constant blood concentration of a medication over time, such as with some antibiotics including beta-lactams. Continuous infusions, where the next infusion is begun immediately following the completion of the prior, may also be used to limit variation in drug concentration in the blood (i.e. between the peak drug levels and the trough drug levels). They may also be used instead of intermittent bolus injections for the same reason, such as with furosemide. Infusions can also be intermittent, in which case the medication is administered over a period of time, then stopped, and this is later repeated. Intermittent infusion may be used when there are concerns about the stability of medicine in solution for long periods of time (as is common with continuous infusions), or to enable the administration of medicines which would be incompatible if administered at the same time in the same IV line, for example vancomycin.

Failure to properly calculate and administer an infusion can result in adverse effects, termed infusion reactions. For this reason, many medications have a maximum recommended infusion rate, such as vancomycin and many monoclonal antibodies. These infusion reactions can be severe, such as in the case of vancomycin, where the reaction is termed "red man syndrome".

Secondary
Any additional medication to be administered intravenously at the same time as an infusion may be connected to the primary tubing; this is termed a secondary IV, or IV piggyback. This prevents the need for multiple IV access lines on the same person. When administering a secondary IV medication, the primary bag is held lower than the secondary bag so that the secondary medication can flow into the primary tubing, rather than fluid from the primary bag flowing into the secondary tubing. The fluid from the primary bag is needed to help flush any remaining medication from the secondary IV from the tubing. If a bolus or secondary infusion is intended for administration in the same line as a primary infusion, the molecular compatibility of the solutions must be considered. Secondary compatibility is generally referred to as "y-site compatibility", named after the shape of the tubing which has a port for bolus administration. Incompatibility of two fluids or medications can arise due to issues of molecular stability, changes in solubility, or degradation of one of the medications.

Access

The simplest form of intravenous access is by passing a hollow needle through the skin directly into a vein. A syringe can be connected directly to this needle, which allows for a "bolus" dose to be administered. Alternatively, the needle may be placed and then connected to a length of tubing, allowing for an infusion to be administered. The type and location of venous access (i.e. a central line versus peripheral line, and in which vein the line is placed) can be affected by the potential for some medications to cause peripheral vasoconstriction, which limits circulation to peripheral veins.

A peripheral cannula is the most common intravenous access method utilized in hospitals, pre-hospital care, and outpatient medicine. This may be placed in the arm, commonly either the wrist or the median cubital vein at the elbow. A tourniquet may be used to restrict the venous drainage of the limb and make the vein bulge, making it easier to locate and place a line in a vein. When used, a tourniquet should be removed before injecting medication to prevent extravasation. The part of the catheter that remains outside the skin is called the connecting hub; it can be connected to a syringe or an intravenous infusion line, or capped with a or saline lock, a needleless connection filled with a small amount of heparin or saline solution to prevent clotting, between uses of the catheter. Ported cannulae have an injection port on the top that is often used to administer medicine.

The thickness and size of needles and catheters can be given in Birmingham gauge or French gauge. A Birmingham gauge of 14 is a very large cannula (used in resuscitation settings) and 24-26 is the smallest. The most common sizes are 16-gauge (midsize line used for blood donation and transfusion), 18- and 20-gauge (all-purpose line for infusions and blood draws), and 22-gauge (all-purpose pediatric line). 12- and 14-gauge peripheral lines are capable of delivering large volumes of fluid very fast, accounting for their popularity in emergency medicine. These lines are frequently called "large bores" or "trauma lines".

Peripheral lines

A peripheral intravenous line is inserted in peripheral veins, such as the veins in the arms, hands, legs and feet. Medication administered in this way travels through the veins to the heart, from where it is distributed to the rest of the body through the circulatory system. The size of the peripheral vein limits the amount and rate of medication which can be administered safely. A peripheral line consists of a short catheter inserted through the skin into a peripheral vein. This is usually in the form of a cannula-over-needle device, in which a flexible plastic cannula comes mounted over a metal trocar. Once the tip of the needle and cannula are placed, the cannula is advanced inside the vein over the trocar to the appropriate position and secured. The trocar is then withdrawn and discarded. Blood samples may also be drawn from the line directly after the initial IV cannula insertion.

Central lines
A central line is an access method in which a catheter empties into a larger, more central vein (a vein within the torso), usually the superior vena cava, inferior vena cava or the right atrium of the heart. There are several types of central IV access, categorized based on the route the catheter takes from the outside of the body to the central vein output.

Peripherally inserted central catheter
A peripherally inserted central catheter (also called a PICC line) is a type of central IV access which consists of a cannula inserted through a sheath into a peripheral vein and then carefully fed towards the heart, terminating at the superior vena cava or the right atrium. These lines are usually placed in peripheral veins in the arm, and may be placed using the Seldinger technique under ultrasound guidance. An X-ray is used to verify that the end of the cannula is in the right place if fluoroscopy was not used during the insertion. An EKG can also be used in some cases to determine if the end of the cannula is in the correct location.

Tunneled lines

A tunneled line is a type of central access which is inserted under the skin, and then travels a significant distance through surrounding tissue before reaching and penetrating the central vein. Using a tunneled line reduces the risk of infection as compared to other forms of access, as bacteria from the skin surface are not able to travel directly into the vein. These catheters are often made of materials that resist infection and clotting. Types of tunneled central lines include the Hickman line or Broviac catheter. A tunnelled line is an option for long term venous access necessary for hemodialysis in people with poor kidney function.

Implantable ports
An implanted port is a central line that does not have an external connector protruding from the skin for administration of medication. Instead, a port consists of a small reservoir covered with silicone rubber which is implanted under the skin, which then covers the reservoir. Medication is administered by injecting medication through the skin and the silicone port cover into the reservoir. When the needle is withdrawn, the reservoir cover reseals itself. A port cover is designed to function for hundreds of needle sticks during its lifetime. Ports may be placed in an arm or in the chest area.

Infusions
Equipment used to place and administer an IV line for infusion consists of a bag, usually hanging above the height of the person, and sterile tubing through which the medicine is administered. In a basic "gravity" IV, a bag is simply hung above the height of the person and the solution is pulled via gravity through a tube attached to a needle inserted into a vein. Without extra equipment, it is not possible to precisely control the rate of administration. For this reason, a setup may also incorporate a clamp to regulate flow. Some IV lines may be placed with "Y-sites", devices which enable a secondary solution to be administered through the same line (known as piggybacking). Some systems employ a drip chamber, which prevents air from entering the bloodstream (causing an air embolism), and allows visual estimation of flow rate of the solution. Alternatively, an infusion pump allows precise control over the flow rate and total amount delivered. A pump is programmed based on the number and size of infusions being administered to ensure all medicine is fully administered without allowing the access line to run dry. Pumps are primarily utilized when a constant flow rate is important, or where changes in rate of administration would have consequences.

Techniques
To reduce pain associated with the procedure, medical staff may apply a topical local anaesthetic (such as EMLA or Ametop) to the skin of the chosen venipuncture area about 45 minutes beforehand.

If the cannula is not inserted correctly, or the vein is particularly fragile and ruptures, blood may extravasate into the surrounding tissues; this situation is known as a blown vein or "tissuing". Using this cannula to administer medications causes extravasation of the drug, which can lead to edema, causing pain and tissue damage, and even necrosis depending on the medication. The person attempting to obtain the access must find a new access site proximal to the "blown" area to prevent extravasation of medications through the damaged vein. For this reason it is advisable to site the first cannula at the most distal appropriate vein.

Pain
Placement of an intravenous line inherently causes pain when the skin is broken and is considered medically invasive. For this reason, when other forms of administration may suffice, intravenous therapy is usually not preferred. This includes the treatment of mild or moderate dehydration with oral rehydration therapy which is an option, as opposed to parenteral rehydration through an IV line. Children in emergency departments being treated for dehydration have better outcomes with oral treatment than intravenous therapy due to the pain and complications of an intravenous line. Cold spray may decrease the pain of putting in an IV.

Certain medications also have specific sensations of pain associated with their administration IV. This includes potassium, which when administered IV can cause a burning or painful sensation. The incidence of side effects specific to a medication can be affected by the type of access (peripheral versus central), the rate of administration, or the quantity of drug administered. When medications are administered too rapidly through an IV line, a set of vague symptoms such as redness or rash, fever, and others may occur; this is termed an "infusion reaction" and is prevented by decreasing the rate of administration of the medication. When vancomycin is involved, this is commonly termed "Red Man syndrome" after the rapid flushing which occurs after rapid administration.

Infection and inflammation
As placement of an intravenous line requires breaking the skin, there is a risk of infection. Skin-dwelling organisms such as coagulase-negative staphylococcus or Candida albicans may enter through the insertion site around the catheter, or bacteria may be accidentally introduced inside the catheter from contaminated equipment. Infection of an IV access site is usually local, causing easily visible swelling, redness, and fever. However, pathogens may also enter the bloodstream, causing sepsis, which can be sudden and life-threatening. A central IV line poses a higher risk of sepsis, as it can deliver bacteria directly into the central circulation. A line which has been in place for a longer period of time also increases the risk of infection.

Inflammation of the vein may also occur, called thrombophlebitis or simply phlebitis. This may be caused by infection, the catheter itself, or the specific fluids or medication being given. Repeated instances of phlebitis can cause scar tissue to build up along a vein. A peripheral IV line cannot be left in the vein indefinitely out of concern for the risk of infection and phlebitis, among other potential complications. However, recent studies have found that there is no increased risk of complications in those whose IVs were replaced only when clinically indicated versus those whose IVs were replaced routinely. If placed with proper aseptic technique, it is not recommended to change a peripheral IV line more frequently than every 72–96 hours.

Phlebitis is particularly common in intravenous drug users, and those undergoing chemotherapy, whose veins can become sclerotic and difficult to access over time, sometimes forming a hard, painful "venous cord". The presence of a cord is a cause of discomfort and pain associated with IV therapy, and makes it more difficult for an IV line to be placed as a line cannot be placed in an area with a cord.

Infiltration and extravasation
Infiltration occurs when a non-vesicant IV fluid or medication enters the surrounding tissue as opposed to the desired vein. It may occur when the vein itself ruptures, when the vein is damaged during insertion of the intravascular access device, or from increased vein porosity. Infiltration may also occur if the puncture of the vein by the needle becomes the path of least resistance—such as a cannula which has been left inserted, causing the vein to scar. It can also occur upon insertion of an IV line if a tourniquet is not promptly removed. Infiltration is characterized by coolness and pallor to the skin as well as localized swelling or edema. It is treated by removing the intravenous line and elevating the affected limb so the collected fluids drain away. Injections of hyaluronidase around the area can be used to speed the dispersal of the fluid/drug. Infiltration is one of the most common adverse effects of IV therapy and is usually not serious unless the infiltrated fluid is a medication damaging to the surrounding tissue, most commonly a vesicant or chemotherapeutic agent. In such cases, the infiltration is termed extravasation, and may cause necrosis.

Others
If the solutions administered are colder than the temperature of the body, induced hypothermia can occur. If the temperature change to the heart is rapid, ventricular fibrillation may result. Furthermore, if a solution which is not balanced in concentration is administered, a person's electrolytes may become imbalanced. In hospitals, regular blood tests may be used to proactively monitor electrolyte levels.

Discovery and development
The first recorded attempt at administering a therapeutic substance via IV injection was in 1492, when Pope Innocent VIII fell ill and was administered blood from healthy individuals. If this occurred, the treatment did not work and resulted in the death of the donors while not healing the pope. This story is disputed by some, who claim that the idea of blood transfusions could not have been considered by the medical professionals at the time, or that a complete description of blood circulation was not published until over 100 years later. The story is attributed to potential errors in translation of documents from the time, as well as potentially an intentional fabrication, whereas others still consider it to be accurate. One of the leading medical history textbooks for medical and nursing students has claimed that the entire story was an anti-semitic fabrication.

In 1656 Sir Christopher Wren and Robert Boyle worked on the subject. As stated by Wren, "I Have Injected Wine and Ale in a liveing Dog into the Mass of Blood by a Veine, in good Quantities, till I have made him extremely drunk, but soon after he Pisseth it out." The dog survived, grew fat, and was later stolen from his owner. Boyle attributed authorship to Wren.

Richard Lower showed it was possible for blood to be transfused from animal to animal and from animal to man intravenously, a xenotransfusion. He worked with Edmund King to transfuse sheep's blood into a man who was mentally ill. Lower was interested in advancing science but also believed the man could be helped, either by the infusion of fresh blood or by the removal of old blood. It was difficult to find people who would agree to be transfused, but an eccentric scholar, Arthur Coga, consented and the procedure was carried out by Lower and King before the Royal Society on 23 November 1667. Transfusion gathered some popularity in France and Italy, but medical and theological debates arose, resulting in transfusion being prohibited in France.

There was virtually no recorded success with any attempts at injection therapy until the 1800s, when in 1831 Thomas Latta studied the use of IV fluid replacements for cholera treatment. The first solutions which saw widespread use for IV injections were simple "saline-like solutions", which were followed by experiments with various other liquids, including milk, sugar, honey, and egg yolk. In the 1830s, James Blundell, an English obstetrician, used intravenous administration of blood to treat women bleeding profusely during or after delivery. This predated the understanding of blood type, leading to unpredictable results.

Modern usage
Intravenous therapy was expanded by Italian physician Guido Baccelli in the late 1890s and further developed in the 1930s by Samuel Hirschfeld, Harold T. Hyman and Justine Johnstone Wanger but was not widely available until the 1950s. There was a time, roughly the 1910s–1920s, when fluid replacement that today would be done intravenously was likelier to be done with a Murphy drip, a rectal infusion; and IV therapy took years to increasingly displace that route. In the 1960s, the concept of providing a person's complete nutritional needs through an IV solution began to be seriously considered. The first parenteral nutrition supplementation consisted of hydrolyzed proteins and dextrose. This was followed in 1975 with the introduction of intravenous fat emulsions and vitamins which were added to form "total parenteral nutrition", or that which includes protein, fat, and carbohydrates.

title: Intravenous therapy