A 33-year-old woman with a BMI of 31 kg/m² presents to the GP requesting emergency contraception. She had unprotected intercourse 48 hours ago. She ca...

Question

A 33-year-old woman with a BMI of 31 kg/m² presents to the GP requesting emergency contraception. She had unprotected intercourse 48 hours ago. She cannot have a copper IUD fitted. She asks whether her weight affects the efficacy of oral EC. Which is the single most accurate statement?

Accepted Answer

Ulipristal acetate is less effective in women with BMI >30 kg/m², and levonorgestrel is less effective in women with BMI >26 kg/m²

Answer

Weight has no effect on either oral EC method

Answer

Only levonorgestrel is affected by body weight

Answer

Both methods are completely ineffective above BMI 30

Answer

Double-dose levonorgestrel is recommended for all women with BMI >25

uk-drcog MCQ (SBA): BMI and Emergency Contraception Efficacy

A 33-year-old woman with a BMI of 31 kg/m² presents to the GP requesting emergency contraception. She had unprotected intercourse 48 hours ago. She cannot have a copper IUD fitted. She asks whether her weight affects the efficacy of oral EC. Which is the single most accurate statement?