Pediatrics Which is going to best declare the case as that of interatrial septal defect with other cardiac abnormalities – A Elevated pressurein left atrium B Elevated pressure in right atrium C Elevated PO2 in pulmonary artery D Systolic murmur 💡 Explanation Which is going to best declare the case as that of interatrial septal defect with other cardiac abnormalities – ✓ Correct Answer: B. Elevated pressure in right atrium