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*~20 minutes  
*~20 minutes  
**>18 minutes increases risk of [[postpartum hemorrhage]] with >30 minutes conferring very increased risk
**>18 minutes increases risk of [[postpartum hemorrhage]] with >30 minutes conferring very increased risk
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[[Image:Stage 3.jpg|70px]]
[[Image:Stage 3.jpg|70px]]
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*1st hour after placental delivery   
*1st hour after placental delivery   
*Period of time with highest risk for [[postpartum hemorrhage]]
*Period of time with highest risk for [[postpartum hemorrhage]]
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Revision as of 01:40, 18 May 2019

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

Stage 1.png

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

Stage 2.png

3rd
  • Placental delivery
  • ~20 minutes

Stage 3.jpg

4th stage