The erythropoietin test measures the amount of a hormone called erythropoietin ((EPO) in blood.
The hormone acts on stem cells in the bone marrow to increase the production of red blood cells. It is made by cells in the kidney, which release the hormone when oxygen levels are low.
See also:
Serum erythropoietin; EPO
Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with...
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