A woman is using fertility awareness methods (natural family planning) to help her identify when she is most fertile.
Which of the following would indicate ovulation is near?

Choice A rationale

Abnormal uterine bleeding (AUB) is a broad term encompassing any deviation from normal menstrual bleeding patterns, including variations in frequency, regularity, duration, and volume. While amenorrhea is a type of AUB, AUB itself is a general category, not the specific term for absence of menses.

Choice B rationale

Amenorrhea refers to the absence of menstruation. Primary amenorrhea is when menstruation has not begun by a certain age, while secondary amenorrhea is the cessation of menstruation for three or more consecutive cycles or six months in a woman who previously menstruated. It is due to various physiological or pathological causes.

Choice C rationale

Oligomenorrhea describes infrequent menstruation, characterized by menstrual cycles lasting longer than 35 days but less than 90 days. This condition indicates an irregular pattern of menstruation rather than a complete absence, often linked to hormonal imbalances or anovulation.

Choice D rationale

Dysmenorrhea refers to painful menstruation, characterized by cramping pain in the lower abdomen that may radiate to the back or thighs. This symptom is related to uterine contractions mediated by prostaglandins during the menstrual period, not the absence of bleeding.

Choice A rationale

Condoms, both male and female, act as a physical barrier, preventing the exchange of bodily fluids containing infectious agents during sexual intercourse. This mechanical obstruction effectively blocks the transmission of bacteria, viruses, and other microorganisms responsible for sexually transmitted infections (STIs), including HIV.

Choice B rationale

Progestin-only pills (POPs) primarily work by thickening cervical mucus, inhibiting ovulation in some users, and thinning the endometrial lining to prevent pregnancy. However, they offer no physical barrier protection and therefore do not prevent the transmission of sexually transmitted infections or HIV, as they do not block pathogen exchange.

Choice C rationale

The copper IUD (Paragard) is a long-acting reversible contraceptive that prevents pregnancy by causing a local inflammatory reaction in the uterus, making it toxic to sperm and eggs. While highly effective at preventing conception, it does not provide any barrier protection against the transmission of sexually transmitted infections or HIV.

Choice D rationale

Spermicide is a chemical contraceptive that immobilizes or kills sperm, preventing fertilization. It does not create a physical barrier to block the transmission of pathogens. In fact, some spermicides, particularly those containing nonoxynol-9, can irritate the vaginal lining, potentially increasing susceptibility to certain sexually transmitted infections.