Gynaecology & Obstetrics True about significant variable decelerations is: A Drop in fetal heart rate to less than 90 bpm for 60 seconds B Drop in fetal heart rate to less than 100 bpm for 60 seconds C Drop in fetal heart rate to less than 80 bpm for 60 seconds D Drop in fetal heart rate to less than 70 bpm for 60 seconds 💡 Explanation True about significant variable decelerations is: ✓ Correct Answer: D. Drop in fetal heart rate to less than 70 bpm for 60 seconds