What term refers to increased red blood cell production triggered by intrauterine hypoxia?

The term that refers to increased red blood cell production triggered by intrauterine hypoxia is indeed erythropoiesis. This process is specifically related to the production of erythrocytes, or red blood cells, in response to low oxygen levels. In a fetal environment where there is reduced oxygen availability, the hypoxia stimulates the kidneys to produce erythropoietin, a hormone that promotes the formation of red blood cells in the bone marrow. This physiological response is crucial, as it helps to increase the oxygen-carrying capacity of the blood, compensating for the low oxygen conditions experienced in utero.

The other terms do not pertain specifically to red blood cell production. Leukopoiesis refers to the production of white blood cells, thrombopoiesis concerns the formation of platelets, and hematopoiesis is a broader term that encompasses the formation of all blood cell types, including red blood cells, white blood cells, and platelets. Therefore, erythropoiesis is the most accurate term in this context.