Beta-thalassemia minor is the only potentially asymptomatic disease of the answer choices. It is asymptomatic because even though it leads to underproduction of the beta chain, there is compensation by increased HbA2. It causes a microcytic anemia, as seen (FA2020 p418).
Aplastic anemia would have decrease in every cell type and would more likely be symptomatic
Folic acid deficiency and B12 deficiency both cause macrocytic anemia, and B12 would have added neuroligic deficits
Sickle cell disease would definitely be symptomatic and she would have history of the disease. It also causes a hemolytic anemia. Sickle cell trait could be asymptomatic.
submitted by โcassdawg(1780)
Beta-thalassemia minor is the only potentially asymptomatic disease of the answer choices. It is asymptomatic because even though it leads to underproduction of the beta chain, there is compensation by increased HbA2. It causes a microcytic anemia, as seen (FA2020 p418).