A child aged 2 years presents with nonspecific symptoms suggestive of
anemia. On peripheral blood smear target cells are seen. He has hypochromic
microcytic picture and Hb of 6 gm%. He also has ‘a positive family history’.
Next investigation of choice is:
A. Hb electrophoresis
B. Coombs’ test
C. liver function tests
D. Osmotic fragility test
Ans. A
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