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1. Question
The nurse knows which of the following body systems is responsible for the production of erythropoietin?
Correct
Answer & Rationale:
The Answer is 1
Explanation:
The urinary system is responsible for the production of erythropoietin, which is the primary hormone regulator that promotes the development and differentiation of red blood cells in the bone marrow and initiates the production of hemoglobin. Ninety percent of erythropoietin is produced by renal peritubular cells, with the other 10% produced in the liver. The cells that produce erythropoietin are sensitive to levels of oxygen within the blood. If the level of oxygen is low, the kidney cells release erythropoietin to stimulate the bone marrow to produce more red blood cells to increase the oxygen-carrying capability of the blood.
Incorrect
Answer & Rationale:
The Answer is 1
Explanation:
The urinary system is responsible for the production of erythropoietin, which is the primary hormone regulator that promotes the development and differentiation of red blood cells in the bone marrow and initiates the production of hemoglobin. Ninety percent of erythropoietin is produced by renal peritubular cells, with the other 10% produced in the liver. The cells that produce erythropoietin are sensitive to levels of oxygen within the blood. If the level of oxygen is low, the kidney cells release erythropoietin to stimulate the bone marrow to produce more red blood cells to increase the oxygen-carrying capability of the blood.
Erythropoietin test
The erythropoietin test measures the amount of a hormone called erythropoietin (EPO) in blood.
The hormone tells stem cells in the bone marrow to make more red blood cells. EPO is made by cells in the kidney. These cells release more EPO when blood oxygen level is low.
Why the Test is performed?
This test may be used to help determine the cause of anemia, polycythemia (high red blood cell count) or other bone marrow disorders.
A change in red blood cells will affect the release of EPO. For example, persons with anemia have too few red blood cells, so more EPO is produced.