A 22-year-old woman attends the GP 10 hours after unprotected intercourse. She requests oral emergency contraception. She has a regular 28-day cycle a...

Question

A 22-year-old woman attends the GP 10 hours after unprotected intercourse. She requests oral emergency contraception. She has a regular 28-day cycle and her last menstrual period started 8 days ago (cycle day 8). She has no contraindications and declines a copper IUD. Which oral emergency contraceptive is most effective in this situation?

Accepted Answer

Ulipristal acetate 30 mg - it is more effective at this point in the cycle as it can delay ovulation even once the LH surge has begun

Answer

Levonorgestrel 1.5 mg - both methods are equally effective before ovulation

Answer

Levonorgestrel 1.5 mg - it is more effective in the first 24 hours

Answer

Either is equally effective within 72 hours

Answer

Ulipristal acetate 30 mg - but only because levonorgestrel is ineffective after cycle day 7

uk-drcog MCQ (SBA): Emergency Contraception Selection