Cervical Effacement – ABCDE

Describe the characteristics of the cervix on exam during the third trimester of pregnancy
  • A – application – contact between cervix and presenting part
  • B – position, e.g. posterior, anterior
  • C – consistency, e.g. soft, firm
  • D – dilatation, e.g. 2 cm
  • E – effacement, e.g. 25%, 50%, 100%

Description of cervix that is not showing signs of active labor: long, closed, and posterior.

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