Cu T 200 is so called -: (A) 200 sqmm of Cu2+ over loop, (B) 200 mm of Cu over loop, (C) For 200 days, Cu concentration does not changes, (D) 200 sqcm of Cu over loop
Answer is A. Ans. is 'a' i.e., 200 sq. mm of Cu+ over loop o The numbers included in the names of the intrauterine devices refer to the surface area (in sq. mm) of cooper on the device.