Gynaecology & Obstetrics Anti D immunoglobulin must be given to a mother of 0 negative group with a bay of 0 positive within: A At bih 4 hours B 4 hours C 24 hours D 72 hours 💡 Explanation Anti D immunoglobulin must be given to a mother of 0 negative group with a bay of 0 positive within: ✓ Correct Answer: D. 72 hours