<prompt> A 5-year-old girl came with history of progressively increasing pallor since bih and hepatosplenomegaly. Which is the most relevant test for achieving diagnosis?Hb electrophoresisPeripheral smear examinationOsmo c fragility testBone marrow examination  <response>: Progressive increasing pallor along with hepatosplenomegaly in a five-year-old girl is consistent with a diagnosis of thalassemia. Thalassemia intermedia Hemoglobin electrophoresis is the test of choice of diagnosing this condition and hence is the option of choice here. 