Gynaecology & Obstetrics In long protocol IVF, GnRH agonist is staed on A Day 1 of previous cycle B Day 21 of previous cycle C Day 1 of IVF cycle D Day 21 of IVF cycle 💡 Explanation In long protocol IVF, GnRH agonist is staed on ✓ Correct Answer: B. Day 21 of previous cycle