HESI LPN
HESI Maternal Newborn
1. Why is a client with gestational diabetes being scheduled for an amniocentesis when the fetus has an estimated weight of eight pounds (3629 grams) at 36 weeks gestation? What information is the amniocentesis seeking to obtain?
- A. Presence of a neural tube defect.
- B. Chromosomal abnormalities.
- C. Gender of the fetus.
- D. Fetal lung maturity.
Correct answer: D
Rationale: An amniocentesis in this scenario is most likely being performed to assess fetal lung maturity. This is necessary when considering early delivery due to macrosomia (large fetal size), which is a common concern in gestational diabetes. Evaluating fetal lung maturity is crucial to determine if the fetus's lungs are developed enough to support breathing independently outside the womb. The presence of a neural tube defect and chromosomal abnormalities are not typically assessed through amniocentesis in this situation, and determining the gender of the fetus is not the primary purpose of the procedure here.
2. Is a low sperm count or lack of sperm the most common infertility problem in men?
- A. TRUE
- B. FALSE
- C. Rarely
- D. Never
Correct answer: A
Rationale: A low sperm count or lack of sperm is indeed one of the most common causes of infertility in men. Factors such as hormonal imbalances, genetic issues, reproductive anatomy problems, and lifestyle factors can also contribute to male infertility. Choice B is incorrect because a low sperm count is a prevalent issue among men facing infertility, making it a common problem. Choices C and D are incorrect as they do not accurately reflect the prevalence of low sperm count as a cause of infertility in men.
3. The client who is 40 weeks gestation seems upset and tells the nurse that the physician told her she needs to have a nonstress test. The client asks why she needs the test. The nurse’s best response would be:
- A. This is a test to see if your stress level is affecting your baby’s growth and well-being.
- B. This is a test to see if your baby will be able to withstand the stress of labor.
- C. This is a test to assess your baby’s well-being now that you are due to deliver soon.
- D. This is a test to let us know if your baby needs to be delivered to avoid a bad outcome.
Correct answer: C
Rationale: The correct response is C because the nonstress test is specifically used to assess the baby's well-being close to the due date. It helps determine if the baby is receiving enough oxygen and nutrients in the womb. Choice A is incorrect as the test does not assess the mother's stress level but focuses on fetal well-being. Choice B is incorrect as the test does not predict the baby's ability to withstand labor. Choice D is incorrect because the test does not solely indicate if the baby needs to be delivered to avoid a bad outcome; rather, it assesses the current well-being of the baby.
4. After meiosis, each new cell nucleus contains _____ chromosomes.
- A. 46
- B. 35
- C. 23
- D. 12
Correct answer: C
Rationale: After meiosis, each resulting cell contains 23 chromosomes. Meiosis is a process that involves two sequential divisions resulting in four daughter cells, each with half the number of chromosomes as the parent cell. In humans, the parent cell has 46 chromosomes (diploid), and after meiosis, the resulting cells (sperm or ova) have 23 chromosomes (haploid). Choice A (46 chromosomes) is incorrect because this is the number of chromosomes in a human diploid cell before meiosis. Choices B (35 chromosomes) and D (12 chromosomes) are incorrect as they do not represent the correct number of chromosomes after meiosis in human cells.
5. _________ are problems that stem from the interaction of heredity and environmental factors.
- A. Multifactorial problems
- B. Cognitive problems
- C. Horizon problems
- D. Coronal problems
Correct answer: A
Rationale: Multifactorial problems are conditions that result from the interplay of genetic and environmental factors. These conditions, such as diabetes or heart disease, are not solely determined by genetics or environment but are influenced by a combination of both factors. Choice B, cognitive problems, refers to difficulties related to thinking, learning, and memory and are not specifically linked to genetic and environmental interactions. Choices C and D, horizon problems and coronal problems, are nonsensical terms and do not relate to the interaction of heredity and environmental factors.
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