This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Natural Methods, Barrier Methods, IUDs, OCPs, Subject name: Social & Preventive Medicine
[{'content': 'Progesterone of choice in Emergency contraception is- \nSelect and explain. \nA. Norgesterone, B. Micronized progesterone, C. Levonorgestrel, D. DMPA', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Emergency contraception: - Aka intraceptive/ post-coital contraception - Methods of emergency contraception:- - Combined OCPs within 72hrs of unprotected intercourse - POPs within 72hrs of unprotected intercourse - Recommended in RCH LNG -based progesterone product is used for emergency contraception. It is used as 1 tablet of 0.75 mg within 72 hrs of unprotected sex and second tablet after 12hrs of first dose - IUD within 5 days - most effective method - Contraindicated in nulliparous - RU-486(mifepristone)- within 72 hrs - High dose estrogen- within 5 days', 'role': 'assistant'}]