Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Three labor disorders based upon Friedman labor curves
| Labor Pattern | Nulliparous | Multiparous |
|---|---|---|
| Prolongation Disorder | ||
| Prolonged latent phase | > 20 hours | > 14 hours |
| Protraction Disorders | ||
| Protracted active-phase dilation | < 1.2 cm/hour | < 1.5 cm/hour |
| Protracted descent | < 1 cm/hour | < 2 cm/hour |
| Arrest Disorders | ||
| Prolonged deceleration phase | > 3 hours | > 1 hour |
| Secondary arrest of dilation | > 2 hours | > 2 hours |
| Arrest of descent | > 1 hour | > 1 hour |
