A 26-year-old woman, G1P0, presents to a family medicine clinic requesting termination of pregnancy. Her last menstrual period was 7 weeks ago, and she had a positive home pregnancy test after levonorgestrel emergency contraception failed to prevent pregnancy. She has had mild spotting for 2 days but no pain, takes no medications, has no allergies, and has no intrauterine device. After counselling she is certain of her decision. Abdominal examination is normal. Transvaginal ultrasound shows a single intrauterine gestational sac with a yolk sac and an embryo with crown-rump length consistent with 7 weeks, no adnexal mass and no free fluid. Serum beta-hCG is 48 000 IU/L; her blood group is A positive.
| Heart rate | 76/min |
| Respiratory rate | 14/min |
| Temperature | 36.8 °C |
| O2 saturation | 99%, room air |
| Blood pressure | 112/70 mm Hg |
Question 1 of 6
Which one of the following is the most appropriate pharmacologic regimen to terminate this pregnancy?
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