Phlebotomy is the act of drawing or removing blood from the circulatory system through a cut (incision) or puncture in order to obtain a sample for analysis and diagnosis. This is usually done after a routine check-up once a year, or when symptoms indicate an illness that must be confirmed by a blood test diagnosis.
It used to be a medical procedure to drain some blood out of a patient. This was called blood-letting.
The medical technology course of medical physics, which is applied physics, is important to the medical field because it is used in medical imaging. Some form of physics is used for x-rays, ultrasounds, and many other tests.
Phlebotomy is used the most in doctors offices, since it's the basic procedure for drawing blood.. It's used the most for blood tests.
Phlebotomy is just the name of the blood draw procedure. Venipuncture is the name of the actual stick of the needle into the vein. Veni(vein)puncture. Technically, according to Medical Terminology. Phlebotomy= Pleb/o (vein) -tomy (incision/cut into) = Incision of a vein. Venipuncture = Ven/o (vein) -puncture (surgical incision)= Surgical incision of a Vein. They are technically the same thing according to Medical Terminology. Phlebotomy is the field hence the word/title Phlebotomist. Venipuncture is the procedure/act of drawing blood. So basically it depends on how your viewing the words. From a Med Term stand or not.
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A red-top tube is typically used in phlebotomy for an RPR (Rapid Plasma Reagin) test.
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In phlebotomy, the most commonly used needle sizes are 21-gauge and 22-gauge needles. A 21-gauge needle is typically used for adult blood draws, as it provides a good balance between blood flow and patient comfort. The 22-gauge needle is often used for pediatric patients or those with smaller veins. Larger needles, like 18-gauge, are sometimes used for blood donation or specific medical procedures.
The lavender or purple-top tube is typically used to measure iron levels in phlebotomy. This tube contains EDTA (ethylenediaminetetraacetic acid) as an anticoagulant to prevent clotting.