Question

question 15
pancytopenia is a condition in which:
rbcs are abnormally shaped.
rbcs are abnormally large.
there is a deficiency of all blood cell types.
wbcs are abnormally small.
question 16
the kidneys secrete a hormone that is responsible for the formation of red blood cells. this hormone is called:
ferritin
erthropoietin
fibrinogen
leukopoietin

Explanation:

• Question 15: Pancyctopenia is a medical condition. By definition, it refers to a deficiency of all types of blood cells (red blood cells - RBCs, white blood cells - WBCs, and platelets). Abnormally shaped RBCs are seen in conditions like sickle - cell anemia. Abnormally large RBCs can be due to megaloblastic anemia. There is no common condition primarily defined by abnormally small WBCs.
• Question 16: Erythropoietin is a hormone secreted by the kidneys. Its main function is to stimulate the production (formation) of red blood cells (erythrocytes) in the bone marrow. Ferritin is a protein that stores iron. Fibrinogen is a clotting factor in the blood. Leukopoietin is not the main hormone for red - blood - cell formation; it would be more related to white - blood - cell (leukocyte) production if it were a commonly - referred - to hormone (but erythropoietin is the key one for red blood cells).

Answer:

• Question 15: there is a deficiency of all blood cell types.
• Question 16: erythropoietin.