Which of the following is a hormone releasing Intra Uterine Device \((IUD)\) ?

A Multiload \(375\)
B \(LNG-20\)
C Cervical cap
D Vault

Verified Solution

Answer & Solution

Correct Answer

(B) \(LNG-20\)

Step-by-step Solution

Detailed explanation

(b) : Intra uterine devices \((IUDs)\) are plastic or metal objects which are inserted by doctors in the uterus through vagina. These are available as non medicated \(IUDs (i.e.\), Lippes loop), copper releasing \(IUDs (CuT, Cu7, \) Multiload \(375)\) and hormone releasing \(IUDs\) (progestasert, \(LN-G20\)). Vault cap is hemispheric dome like rubber or plastic cap with a thick rim which is meant for fitting over the vaginal vault over the cervix.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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