To diagnose prolonged latent phase in a nulliparous women, latent phase should be prolonged for
ParityProlonged latent phaseNulliparous> 20 hoursMultiparous> 14 hoursReference: William's Obstetrics; 25th edition; Chapter 23; Abnormal Labor
> 6 hours
> 10 hours
> 14 hours
> 20 hours
General obstetrics