Certified Pediatric Hematology Oncology Nurse (CPHON) Practice Exam

Question: 1 / 400

Extramedullary erythropoiesis refers to:

The production of blood outside of the marrow

Extramedullary erythropoiesis refers to the production of blood outside of the bone marrow. This physiological response typically occurs in situations where the bone marrow is unable to meet the body's demand for red blood cell production, such as in certain anemias, bone marrow diseases, or as a compensatory mechanism during rapid blood loss. During extramedullary erythropoiesis, hematopoietic activity can take place in organs such as the liver and spleen, which are sites for blood cell formation during fetal development. Thus, the concept highlights the body's ability to adapt and produce red blood cells outside the conventional site of hematopoiesis, which is the bone marrow.

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The increased production of red blood cells in the lungs

The reduction of blood production due to iron deficiency

The process of white blood cell regeneration

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