Prolonged latent phase in nullipara is defined as one exceeding: (A) 10 hours, (B) 14 hours, (C) 18 hours, (D) 20 hours
Answer is D. A prolonged latent phase was defined as one exceeding 20 hours in the nullipara and 14 hours in the multiparous women.(Ref: William's Obstetrics; 25th edition)