Gynaecology & Obstetrics During active labor, cervical dilatation per hour in primigravida is: March 2013 A 1 cm/hour B 1.5 cm/hour C 1.7 cm/hour D 2 cm/hour 💡 Explanation During active labor, cervical dilatation per hour in primigravida is: March 2013 ✓ Correct Answer: A. 1 cm/hour