Polycythemia
Polycythemia ( 15 Questions)
Which statement by the nurse is accurate regarding the pathophysiology of this condition?
This statement is incorrect. Polycythemia vera is a primary disorder where red blood cell production is not regulated properly, leading to an excess of red blood cells. In primary polycythemia, there is an increase in erythropoietin (EPO) production, not a decrease.
This is the correct answer. In primary polycythemia (polycythemia vera), the overproduction of red blood cells is stimulated by increased levels of erythropoietin (EPO)
Secondary polycythemia can be caused by a mutation in the JAK2 gene, but this is not the pathophysiology of primary polycythemia (polycythemia vera)
Erythropoietin (EPO) actually stimulates the bone marrow to produce more red blood cells, not fewer. Therefore, this statement is incorrect.
Choice A rationale:
This statement is incorrect.
Polycythemia vera is a primary disorder where red blood cell production is not regulated properly, leading to an excess of red blood cells.
In primary polycythemia, there is an increase in erythropoietin (EPO) production, not a decrease.
Choice B rationale:
This is the correct answer.
In primary polycythemia (polycythemia vera), the overproduction of red blood cells is stimulated by increased levels of erythropoietin (EPO)
Choice C rationale:
Secondary polycythemia can be caused by a mutation in the JAK2 gene, but this is not the pathophysiology of primary polycythemia (polycythemia vera)
Choice D rationale:
Erythropoietin (EPO) actually stimulates the bone marrow to produce more red blood cells, not fewer.
Therefore, this statement is incorrect.