29/09/2026
π A 19-year-old male is evaluated for fatigue and scleral icterus, worsening during viral illnesses. He reports a family history of hemolytic anemia requiring prior splenectomy. Physical exam shows icterus and splenomegaly. CBC shows Hb 10.2 g/dL, reticulocytes 8%, and an increased MCHC. The direct Coombs test is negative. Peripheral smear reveals spherocytes. Which of the following tests is considered the most highly sensitive and specific for confirming this patientβs diagnosis?
A. Eosin-5β-maleimide (EMA) binding test
B. Hemoglobin electrophoresis
C. Bone marrow aspiration and biopsy
D. Glucose-6-phosphate dehydrogenase (G6PD) fluorescent spot test
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