HESI RN
Reproductive System Exam Questions
1. _______ is a lytic enzyme released by the sperm.
- A. Hyaluronidase
- B. Trypsin
- C. Helicase
- D. None of the above
Correct answer: A
Rationale: Hyaluronidase is the correct answer. It is a lytic enzyme released by the sperm to help penetrate the egg's protective layer. Trypsin is a digestive enzyme produced in the pancreas, not released by sperm. Helicase is an enzyme involved in DNA replication, not released by sperm. 'None of the above' is incorrect as hyaluronidase fits the description provided in the question.
2. Amniocentesis, a prenatal diagnostic test used to determine fetal sex, genetic anomalies, and biochemical abnormalities, is based on:
- A. The karyotyping of the amniotic fluid
- B. Chorionic villus sampling
- C. Umbilical cord blood sampling
- D. Ultrasound
Correct answer: A
Rationale: The correct answer is A. Amniocentesis involves the analysis of the fetal cells present in the amniotic fluid, which is extracted from the amniotic sac surrounding the developing fetus. This fluid contains cells shed by the fetus, which can be cultured and analyzed to obtain a karyotype, providing information about the fetal sex, genetic anomalies, and biochemical abnormalities. Choices B, C, and D are incorrect because chorionic villus sampling involves obtaining a sample of the chorionic villi from the placenta, not the amniotic fluid; umbilical cord blood sampling is typically used for other purposes like assessing the baby's blood for infections or genetic disorders; and ultrasound is a diagnostic imaging technique that does not involve the analysis of fetal cells for genetic information.
3. The letter 'T' in the Acronym 'GATHER' denotes:
- A. Ask the client about themselves - particular needs, obstetric and medical history
- B. Tell the client about modern FP methods available, and discuss each in detail
- C. Help the client choose a method and repeat information regarding the chosen method if necessary
- D. Explain how to use the method - what, where, when, and how
Correct answer: B
Rationale: The correct answer is B: 'Tell the client about modern FP methods available, and discuss each in detail.' In the GATHER acronym, 'T' stands for providing information about modern family planning methods to the client and having a detailed discussion. Choices A, C, and D are incorrect because they do not accurately represent the 'T' component in the GATHER approach. Choice A focuses more on gathering information from the client, choice C is about helping the client choose a method, and choice D is about explaining how to use the method, none of which align with the 'T' in GATHER.
4. At what age are women likely to enter menopause?
- A. 35 - 40 years
- B. 40 - 45 years
- C. 45 - 50 years
- D. 25 - 30 years
Correct answer: C
Rationale: Women generally enter menopause between the ages of 45 - 50 years. During this stage, women experience a decline in estrogen production, leading to the cessation of menstrual cycles. Choices A, B, and D are incorrect as they do not fall within the typical age range for menopause onset. Menopause typically occurs later in life, around the age of 45 to 50 years, although individual variations exist.
5. The placenta is developed from which part of the trophoblast?
- A. Chorionic Frondosum
- B. Anchoring Villi
- C. Chorionic Laeve
- D. Body Stalk
Correct answer: A
Rationale: The correct answer is A: Chorionic Frondosum. The placenta is developed from the chorionic frondosum part of the trophoblast. This structure gives rise to the fetal part of the placenta. Choices B, C, and D are incorrect. Anchoring Villi are projections from the chorionic plate that attach the placenta to the uterine wall. Chorionic Laeve refers to the smooth chorion that covers the fetal surface of the placenta. The Body Stalk is a structure that connects the early embryo to the trophoblastic pole of the blastocyst.
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