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Bloodletting (or blood-letting) is the deliberate withdrawal of blood from a patient to prevent or cure illness and disease. Bloodletting, whether by a physician or by leeches , was based on an ancient system of medicine in which blood and other bodily fluids were regarded as " humours " that had to remain in proper balance to maintain health.
Phlebotomy is the process of making a puncture in a vein, usually in the arm, with a cannula for the purpose of drawing blood. [1] The procedure itself is known as a venipuncture , which is also used for intravenous therapy .
Phlebotomy licensure is the process by which various regulatory bodies regulate the practice of phlebotomy within its jurisdiction through licensure. In many countries a license is not required, or is obtained through other broader qualifications (such as a medical license), while in others, professional phlebotomists are separately licensed.
Phlebotomy licensure in the United States is the process by which various regulatory bodies regulate the practice of phlebotomy through licensure. There are no federal phlebotomy training or certification requirements, though several states have imposed their own requirements.
Franz Anton Maulbertsch's The Quack (c. 1785) shows barber surgeons at work. Bloodletting set of a barber surgeon, beginning of 19th century, Märkisches Museum Berlin. The barber surgeon was one of the most common European medical practitioners of the Middle Ages, generally charged with caring for soldiers during and after battle.
The name is most likely derived from phlebotome: phlebos, Greek for blood vessel and tome, meaning to cut. [2] These instruments are the progression from the early use of fish teeth, sharpened stones, and thorns used to penetrate blood vessels. The earliest known examples are made of bronze with a myrtle-leaf shape to the blade.
Treatment of haemochromatosis by energetic phlebotomy; one patient's response to the letting of 55 litres of blood in 11 months. British Journal of Haematology. 1958 Jan;4(1):82-8. Effect of homologous bone marrow-spleen cell suspension on survival of swine exposed to radiation from a nuclear weapon. Blood. 1960 Jun;15:856-62.
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