Contraception · NEET PG Preparation Obstetrics & Gynaecology
Which of the following is the primary mechanism of action of the Copper-T 380A intrauterine device?
Practice question from Contraception (NEET PG Preparation Obstetrics & Gynaecology), with the correct answer and a step-by-step solution.
medium · MCQ · Q-115DDA
Which of the following is the primary mechanism of action of the Copper-T 380A intrauterine device?
- A.Inhibition of the hypothalamic-pituitary-ovarian axis preventing ovulation
- B.Thickening of the cervical mucus to prevent sperm penetration
- C.Spermicidal and inflammatory endometrial reaction preventing fertilization and implantationCorrect answer
- D.Direct suppression of luteinizing hormone surge
Solution
The primary mechanism of copper IUDs is a sterile inflammatory reaction within the endometrium induced by copper ions, which is toxic to sperm and ova, thereby preventing fertilization. Copper does not prevent ovulation; hormonal IUDs, however, work primarily by thickening cervical mucus and suppressing endometrial proliferation.
More from Contraception
- A 28-year-old postpartum woman who is exclusively breastfeeding her 6-week-old infant wishes to start hormonal contraception. She has no si…
- Which of the following emergency contraceptives can be effectively used up to 120 hours (5 days) following unprotected intercourse?
- According to the US Medical Eligibility Criteria (US MEC) for Contraceptive Use, a patient with active deep vein thrombosis (DVT) on antico…
- A 32-year-old multiparous woman requests long-acting reversible contraception. She has a history of heavy menstrual bleeding and dysmenorrh…
Practise more Obstetrics & Gynaecology
Sign up free for adaptive practice on this chapter, with instant feedback and hints on every question.
Start practising freeFree to start · No credit card needed