Erythropoietin is Secreted

Question

Erythropoietin is secreted
A) in response to thrombopoiesis.
B) in response to increasing blood levels of CO2.
C) when prothrombin is activated to thrombin.
D) when blood levels of oxygen decline.

Accepted Answer

Erythropoietin is primarily secreted by the kidneys in response to decreasing levels of oxygen in the blood. It stimulates the production of red blood cells to increase oxygen-carrying capacity.