This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Methods - Progestogen-Only Contraception, Subject name: Gynaecology & Obstetrics
Daily release of ho rmonefrom mirena is - 
Select and explain. 
A. 10 microgram, B. 20 microgram, C. 30 microgram, D. 40 microgram
B: 20 microgram
Answer: B: 20 microgram 
Explanation: Ans. is 'b' i.e., 20 microgram Mirena:o It is levennogesterol releasing intrauterine contraceptive device system.o It measures about 32 x 32 mm.o It has a life span of 5 yearso It contains 52 mg of levenogesterol.o It releases 20 meg/ day of levenogesterol.