Pediatrics Assessment of pre-ductal O2 saturation in PDA of a 3 minute born infant is done at? A Fetal left Upper limb B Fetal left lower limb C Fetal Right Upper limb D Fetal right lower limb 💡 Explanation Assessment of pre-ductal O2 saturation in PDA of a 3 minute born infant is done at? ✓ Correct Answer: C. Fetal Right Upper limb