First trimester abortion

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Background

Clinical Features

Differential Diagnosis

Complete Abortion

  1. <12 weeks + no IUP
  2. Distinguish from ectopic based on decreasing hCG, decreased bleeding
  3. Only need to send hCG if unable to examine POC

Threatened Abortion

  1. Closed os + IUP + bloody vaginal dischrage or frank bleeding
  2. If <11wk >90% go to term
  3. If between 11 and 20wk 50% go to term

Inevitable Abortion

  1. Open os + contractions/cramps

Incomplete Abortion

      1. >12 wks + passage of only portion of POC

Missed Abortion

      1. Fetal death at <20wk w/o passage of any fetal tissue for 4wk after fetal death

Septic abortion

  1. Evidence of infection during any stage of abortion
  2. Most commonly caused by retained products of conception

Workup

Management

Disposition

See Also

Sources

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