All the following comprise the clinical categories of alpha thalassemia except:

An immune hemolytic disorder in which red cells in utero are destroyed by maternal IgG antibody is:

Hemoglobin electrophoresis of a 2-year-old patient showed migration of A2 and F on cellulose acetate at pH 8.4. Quantitation studies showed 5% A2 and 95% F. What thalassemia is most likely present?

Intravascular hemolysis due to mechanical etiologies is usually accompanied by the presence of:

What findings distinguish megaloblastic anemia due to vitamin B12 deficiency from that due to folate deficiency?

Abnormal liver enzymes and increased iron studies suggest which condition?

Petechiae, purpura, or ecchymoses can be seen in patients with aplastic anemia due to:

What lethal disease is characterized by homozygosity of the α0-thalassemia gene haplotype in utero?

Which of the following hemoglobins are present in hemoglobin SC disease?

In HDFN, when extramedullary hematopoiesis takes over for the fetal bone marrow to compensate for increased red cell destruction, this results in: