Pediatrics One year old baby exclusively breast fed has a 1cm. hepatomegaly severe pallor and no spleen.The most important investigation is – A B12 estimation B Serum iron estimation C Folic and estimation D Fetal hemoglobin estimation 💡 Explanation One year old baby exclusively breast fed has a 1cm. hepatomegaly severe pallor and no spleen.The most important investigation is – ✓ Correct Answer: B. Serum iron estimation