Sandbox

Stage Info Picture
1st **Latent ***Passage of cervical mucous plug ***Slow dilation to 3 cm **Active ***Rapid cervical dilation from 3 cm to 10 cm **~8 hours in primiparous and ~5 hours in multiparous

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2nd **Cervix fully dilated **Urge to push **Expulsion of infant **~20 - 50 minutes

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3rd **Placental delivery **~20 minutes ***>18 minutes increases risk of postpartum hemorrhage with >30 minutes conferring very increased risk

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4th stage **1st hour after placental delivery **Period of time with highest risk for postpartum hemorrhage