A nurse teaches a pregnant woman about the presumptive, probable, and positive signs of pregnancy. The woman demonstrates an understanding of the nurse's instructions if she states that a positive sign of pregnancy is:

Choice A reason: This is incorrect because providing the patient with handouts is not enough to ensure effective communication. The handouts may not be in the patient's preferred language or may use unfamiliar words or concepts. The nurse should also use other methods, such as interpreters, translators, or visual aids, to convey information to the patient.

Choice B reason: This is incorrect because speaking quickly and efficiently may hinder the patient's comprehension and increase the risk of misunderstanding. The nurse should speak slowly and clearly, using simple and common words, and allow time for the patient to ask questions or clarify information.

Choice C reason: This is correct because assessing whether the patient understands the discussion is essential for effective communication and patient education. The nurse should use techniques such as teach-back, ask-me-3, or show-me to verify the patient's understanding and address any gaps or misconceptions.

Choice D reason: This is incorrect because using maternity jargon may confuse the patient and create barriers to communication. The nurse should avoid using medical terms, abbreviations, or slang that the patient may not be familiar with. The nurse should explain any necessary terms in plain language and use examples or analogies to illustrate them.

Choice A reason: This is incorrect because primary dysmenorrhea is menstrual pain that is not associated with any underlying condition. It usually begins with the onset of menstruation and lasts for a few days. It does not cause pain during intercourse or infertility.

Choice B reason: This is correct because endometriosis is a condition where the endometrial tissue that normally lines the uterus grows outside the uterus, such as on the ovaries, fallopian tubes, or pelvic organs. It causes chronic inflammation, scarring, and adhesions that can result in severe pain during menstruation and intercourse, as well as infertility.

Choice C reason: This is incorrect because secondary dysmenorrhea is menstrual pain that is caused by an underlying condition, such as fibroids, pelvic inflammatory disease, or adenomyosis. It usually develops later in life and lasts longer than primary dysmenorrhea. It may or may not cause pain during intercourse or infertility, depending on the condition.

Choice D reason: This is incorrect because PMS stands for premenstrual syndrome, which is a group of physical and emotional symptoms that occur before menstruation. It may include mood swings, irritability, bloating, headaches, or breast tenderness. It does not cause severe pain during menstruation or intercourse, or infertility.