HESI RN
Reproductive System Exam Questions
1. What is the most common cause of abortion in Zambia?
- A. Tuberculosis
- B. HIV
- C. Ascariasis
- D. Malaria
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.
2. Which statement accurately describes the female pelvis?
- A. Gynaecoid pelvis has a wedge-shaped inlet
- B. Platypelloid pelvis has an oval inlet
- C. Anthropoid pelvis has a long narrow oval inlet
- D. Android pelvis is wedge-shaped
Correct answer: B
Rationale: The correct answer is B because the Platypelloid pelvis indeed has an oval inlet. Gynaecoid pelvis, not mentioned in the choices, has a round inlet. Anthropoid pelvis has a long, narrow oval inlet, which makes choice C incorrect. Choice D is incorrect as the Android pelvis is actually heart-shaped with a narrowed inlet.
3. Which hormone regulates the production of milk after childbirth?
- A. Prolactin
- B. Oxytocin
- C. Estrogen
- D. Progesterone
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.
4. What is amniocentesis used to detect?
- A. Sexually transmitted diseases
- B. Presence of certain genetic disorders
- C. Causes of infertility
- D. Presence of pneumonia germs
Correct answer: B
Rationale: Amniocentesis is a prenatal test used to detect certain genetic disorders in a developing fetus. It involves collecting a small sample of the amniotic fluid surrounding the fetus and analyzing the genetic material present in the cells. This test is not used to detect sexually transmitted diseases, causes of infertility, or the presence of pneumonia germs. Therefore, the correct answer is B.
5. A solid ball of 12-16 cells having undergone mitotic division after fertilization is:
- A. Zygote
- B. Blastomere
- C. Morula
- D. Blastocyst
Correct answer: C
Rationale: A morula is a stage in embryonic development where a solid ball of 12-16 cells is formed after several rounds of mitotic division following fertilization. The zygote is the initial cell formed by the fusion of sperm and egg. Blastomere refers to individual cells in a developing embryo. A blastocyst is a later stage where a fluid-filled cavity forms within the embryo. Therefore, the correct answer is 'Morula.'
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