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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 .
Therapeutic phlebotomy refers to the drawing of a unit of blood in specific cases like hemochromatosis, polycythemia vera, porphyria cutanea tarda, etc., to reduce the number of red blood cells. [ 6 ] [ 7 ] The traditional medical practice of bloodletting is today considered to be a pseudoscience .
This name for handheld venipuncture devices first appears in Anglo-Saxon manuscripts around 1000. [1] The name is most likely derived from phlebotome: phlebos, Greek for blood vessel and tome, meaning to cut. [2]
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The Vacutainer was preceded by other vacuum-based phlebotomy technology such as the Keidel vacuum. The plastic tube version, known as Vacutainer PLUS, was developed at B-D in the early 1990s by E. Vogler, D. Montgomery and G. Harper amongst others of the Surface Science Group as US patents 5344611, 5326535, 5320812, 5257633 and 5246666.
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.
Tests commonly conducted on the capillary blood collected are: . Blood gas test – Fingerstick testing may be used for measuring blood gas tension values, blood pH, and the level and base excess of bicarbonate.