Which of the following is true regarding the clinical features of thalassemias?
a. Are mild conditions rarely requiring treatment
b. Are serious conditions requiring frequent blood transfusions
c. Have abnormal red cells but little clinical implications for patients
d. Vary from benign forms to those incompatible with life
ANS: D
The thalassemias are a heterogeneous group of disorders that range from asymptomatic (benign) to death (incompatible with life).
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