Medicine Pressure difference of 5 mmHg between the two upper limbs occurs in which congenital hea disease? A TOF B TGA C HOCK D Supra-valvular aoic stenosis 💡 Explanation Pressure difference of 5 mmHg between the two upper limbs occurs in which congenital hea disease? ✓ Correct Answer: D. Supra-valvular aoic stenosis