DMPA is an injectible contraceptive given every –
**Core Concept**
DMPA (Depot Medroxyprogesterone Acetate) is a long-acting reversible contraceptive injection that provides sustained release of a progestin hormone to prevent ovulation. It is a type of depot medroxyprogesterone acetate, which is a synthetic form of the naturally occurring progesterone hormone.
**Why the Correct Answer is Right**
The correct administration interval for DMPA is every 12 weeks (3 months) to maintain its contraceptive efficacy. This is because the slow release of medroxyprogesterone acetate from the injection depot provides a steady and prolonged exposure to the hormone, which is necessary to prevent ovulation and fertilization. The 12-week interval ensures that the hormone levels remain within the therapeutic range, thereby maintaining the contraceptive effect.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because DMPA is not typically given every 4 weeks. This frequency would not allow for the sustained release of the hormone necessary for effective contraception.
**Option B:** Incorrect because DMPA is not given every 6 weeks. While this might seem close to the correct interval, it is not sufficient to maintain the therapeutic levels of the hormone.
**Option C:** Incorrect because DMPA is not given every 8 weeks. This frequency is even farther from the recommended 12-week interval and would likely lead to decreased contraceptive efficacy.
**Clinical Pearl / High-Yield Fact**
DMPA is a safe and effective contraceptive option for women who want to avoid the daily or monthly responsibilities of other contraceptive methods. However, it is essential to note that DMPA can cause irregular menstrual bleeding, and users should be informed about this potential side effect.
**Correct Answer:** D. every 12 weeks (3 months)