Gynaecology & Obstetrics Inhibin B levels as test of ovarian reserve is best measured on? A Day 2 of menstruation B Day 3 of menstruation C Day 4 of menstruation D Day 5 of menstruation 💡 Explanation Inhibin B levels as test of ovarian reserve is best measured on? ✓ Correct Answer: B. Day 3 of menstruation