which hormone regulates the production of milk after childbirth
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HESI RN

Reproductive System Exam Questions

1. Which hormone regulates the production of milk after childbirth?

Correct answer: A

Rationale: The correct answer is Prolactin. Prolactin is the hormone responsible for regulating the production of milk after childbirth. It stimulates the mammary glands in the breasts to produce milk. Oxytocin, on the other hand, is responsible for the ejection of milk from the breasts. Estrogen and progesterone play roles in the menstrual cycle and pregnancy but are not directly involved in milk production. Therefore, choices B, C, and D are incorrect.

2. What is Diazepam used for?

Correct answer: D

Rationale: Diazepam is primarily used for relieving anxiety and muscle spasms. It is a benzodiazepine medication that works by enhancing the effects of a neurotransmitter in the brain to produce a calming effect. While Diazepam is not used for managing post-partum hemorrhage, pre-eclampsia, or inducing labor, it is essential in treating anxiety disorders, muscle spasms, and certain types of seizures. Therefore, option D is the correct answer as it aligns with the primary therapeutic use of Diazepam.

3. Which phase of the menstrual cycle is variable?

Correct answer: B

Rationale: The regenerative phase of the menstrual cycle is the phase in which the endometrium rebuilds after menstruation. This phase can vary in duration from woman to woman and cycle to cycle. Choice A, the ovulatory phase, is not variable as it typically lasts around 24 hours. Choice C, the secretory phase, is also relatively consistent in its duration. Choice D, the menstrual phase, is the shedding of the endometrial lining and usually lasts around 3-7 days.

4. Which one of the following is not a stage in the ovarian cycle of the menstrual cycle?

Correct answer: A

Rationale: The correct answer is A. The recruitment of the Graafian follicle is indeed a stage in the ovarian cycle. During the ovarian cycle, the primary follicles are recruited to develop further, leading to the formation of the Graafian follicle. The selection of the dominant follicle, luteal phase, and formation of the corpus luteum are other essential stages in the ovarian cycle. Therefore, option A is not correct as it is a crucial phase in the process of ovulation and fertilization.

5. What is the most common cause of abortion in Zambia?

Correct answer: D

Rationale: Malaria is the most common cause of abortion in Zambia due to its significant impact on maternal health. Malaria can lead to severe complications during pregnancy, increasing the risk of spontaneous abortion. Tuberculosis (Choice A), HIV (Choice B), and Ascariasis (Choice C) are serious health conditions, but they are not typically identified as the primary cause of abortion in Zambia as malaria.

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