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What does phlebotomy mean

What does phlebotomy mean? Phlebotomy is an incision in the vein for the purpose of drawing blood.
The website Wikipedia says that the name phlebotomy came from the Greek words phleo- meaning, “pertaining to a blood vessel,” and tomy- meaning “to make an incision.” Wikipedia also states that phlebotomy is the process of making an incision in a vein with a needle. The procedure itself is known as a venipuncture. (http://en.wikipedia.org/wiki/Phlebotomy)
Medical-dictionary says that phlebotomy is the act of drawing blood from the circulatory system through an incision in order to obtain a sample for analysis and diagnosis. Medical-dictionary also states that phlebotomy is done as part of the patient’s treatment for certain blood disorders as well. Phlebotomy that is part of a treatment is called therapeutic phlebotomy. A therapeutic phlebotomy is performed to treat polycythemia vera, which is a condition that causes elevated red blood cell volume (hematocrit). Phlebotomy is also used to remove blood from the body during blood donation and for analysis of the substances contained within it. (http://medical-dictionary.thefreedictionary.com/phlebotomy)
Merriam-Webster says that phlebotomy is the drawing of blood (as by a venipuncture) for transfusions, apheresis, diagnostic testing, or experimental procedures. (http://www.merriam-webster.com/dictionary/phlebotomy)
Phlebotomy is an incision in the vein for the purpose of drawing blood. The blood drawn can be used for many things such as: analysis, diagnosis, transfusions, apheresis, diagnostic testing, or experimental procedures.