Obstetrics & Gynaecology – MCQ 58 – Mechanism of action of emergency contraception

Emergency contraception prevents pregnancy by all of the following mechanisms, except:
A. Delaying/inhibiting ovulation
B. Inhibiting fertilization
C. Preventing implantation of the fertilized egg
D. Interrupting an early pregnancy

Correct answer : D. Interrupting an early pregnancy

Emergency contraception is used to prevent pregnancy. Interruption of an early pregnancy is not contraception – it is termination of pregnancy.

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