Complete Abortion
A 24-year-old woman at 10 weeks gestation reports heavy bleeding with cramping that stopped after she passed a fleshy mass at home. Blood pressure is 118/72 mm Hg, pulse 82 beats/min, and temperature 36.8 °C. The cervical os is closed with minimal blood. Transvaginal ultrasound shows an empty uterus with a thin endometrium. Which of the following is the most appropriate management?
- A.Urgent dilatation and curettage
- B.Intramuscular methylergonovine
- C.Intravenous fluid resuscitation
- D.Expectant management with reassuranceCorrect
Explanation
This is a classic complete abortion: products of conception have already passed, the cervix has closed, bleeding and cramping have settled, the woman is haemodynamically stable, and ultrasound shows an empty uterus with a thin endometrial stripe. No further intervention is required. Management is expectant, with reassurance, advice about expected light bleeding for 1 to 2 weeks, and return precautions for heavy bleeding, fever, or offensive discharge. Anti-D immunoglobulin should be given if she is Rh negative, and a follow-up beta-hCG or clinical review confirms resolution and excludes an undiagnosed ectopic pregnancy. Surgical evacuation is reserved for incomplete abortion, where the cervix is open and retained tissue or a thickened heterogeneous endometrium is seen, or for haemorrhage and haemodynamic instability. Uterotonics such as methylergonovine are used for postpartum uterine atony and have no role in an already contracted, empty uterus. Intravenous fluids would be appropriate for tachycardia, hypotension, or ongoing brisk bleeding, none of which is present. Distinguishing the types of abortion by cervical os and ultrasound findings is the highest-yield step: closed os plus empty uterus means complete, open os plus retained tissue means incomplete, and closed os plus a viable intrauterine fetus means threatened.
Why each option
- A.
- Curettage is indicated for retained products, ongoing haemorrhage, or instability, and here would expose her to perforation and intrauterine adhesions for no benefit.
- B.
- Methylergonovine treats postpartum haemorrhage from uterine atony; the uterus here is already empty and contracted.
- C.
- Intravenous fluids are for hypovolaemia or continuing heavy bleeding; her vital signs are normal and bleeding has stopped.
- D.
- Correct. Complete abortion with a closed os, empty uterus, and stable vital signs needs only reassurance, safety-netting, and anti-D if Rh negative.
Reference: UpToDate 2025, Pregnancy loss (miscarriage): Description of management approaches
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