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| align="center" style="background:#f0f0f0;"|'''Picture'''
| align="center" style="background:#f0f0f0;"|'''Picture'''
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|1st||
|1st
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*Latent  
*Latent  
**Passage of cervical mucous plug  
**Passage of cervical mucous plug  
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*Urge to push  
*Urge to push  
*Expulsion of infant  
*Expulsion of infant  
*~20 - 50 minutes||
*~20 - 50 minutes
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[[Image:File:Stage 2.png|70px]]
[[Image:File:Stage 2.png|70px]]
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[[Image:File:Stage 3.png|70px]]
[[Image:File:Stage 3.png|70px]]
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|4th stage||
|4th stage
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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]]

Revision as of 01:34, 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

File:File:Stage 1.png

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

File:File:Stage 2.png

3rd
  • Placental delivery
  • ~20 minutes

File:File:Stage 3.png

4th stage