Which of the following is hormone­releasing IUD?

Explanation

The correct answer is: a. LNG-20 Now, let's explain each of the options and why the correct answer is LNG-20: a. LNG-20: LNG-20 (Levonorgestrel 20) is a hormone-releasing intrauterine device (IUD). It contains the hormone levonorgestrel, which is released slowly over time. This hormone has contraceptive effects, primarily by thickening cervical mucus to prevent sperm from reaching the egg, inhibiting ovulation, and altering the uterine lining to make it less receptive to implantation. It is a highly effective form of long-acting contraception. b. Multiload 375: Multiload 375 is a copper-containing IUD (Intrauterine Device), not a hormone-releasing IUD. It does not release hormones but instead uses copper to create a spermicidal effect, preventing fertilization. c. Lippes loop: The Lippes loop is an older form of intrauterine contraception that doesn't release hormones. It's a mechanical IUD made of plastic or stainless steel, and it primarily works by interfering with sperm movement and possibly affecting fertilization. It is not a hormone-releasing IUD. d. Cu7: Cu7 is another type of copper-containing IUD, which means it doesn't release hormones either. It relies on the copper ions it releases to disrupt sperm function and prevent fertilization. Summary: The hormone-releasing IUD among the options listed is LNG-20, which contains the hormone levonorgestrel. This hormone has contraceptive effects by altering the cervical mucus, inhibiting ovulation, and affecting the uterine lining, making it less receptive to implantation.