Pediatrics An infant presents with cardiac failure. Examination reveals a weaker femoral pulse when compared to the radial pulse. What is the probable diagnosis? A PDA B COA C Aorto-illiac vasculitis D VSD 💡 Explanation An infant presents with cardiac failure. Examination reveals a weaker femoral pulse when compared to the radial pulse. What is the probable diagnosis? ✓ Correct Answer: B. COA