Which statement best describes a copper intrauterine device?

• A. It releases estrogen
• B. It is nonhormonal
• C. It contains both estrogen and progestin
• D. It is only for postcoital use

Answer: (B)

The key idea is that a copper intrauterine device is a nonhormonal method of long-acting contraception. It does not release estrogen or any progestin. Instead, copper ions in the uterus create a local inflammatory and spermicidal environment that impairs sperm motility and viability, preventing fertilization. Because there are no hormones involved, it does not alter systemic hormone levels and can lead to heavier or longer periods for some users.

This is why the statement about releasing estrogen is incorrect. It’s also not a product that contains both estrogen and progestin, nor is it used only after intercourse; it provides ongoing contraception and can be used as emergency contraception if inserted within a few days after unprotected sex, but its primary use is long-term, not postcoital.