what is the most common patient concern when having blood drawn
A procedure where a needle is utilized to extract blood from a vein is called blood drawing, phlebotomy, or venipuncture, and it is typically used for laboratory research. In the blood, antibodies and blood cell functions, medical conditions, concentrations of chemicals and drugs can be calculated from the blood drawn from the patient. A blood draw can also be performed to extract excess blood cells for the treatment of such blood disorders.
Venous blood is deoxygenated blood flowing to the right side of the heart via small capillary blood vessels inside the tissues that lead to increasingly larger veins. Typically, a vein in the arm is readily accessible. Hence, the blood draw is mostly performed on the arms of the patients.
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