HESI LPN
HESI Focus on Maternity Exam
1. A client comes to the clinic for her first prenatal visit and reports that July 10 was the first day of her last menstrual period. Using Nagele’s Rule, the nurse calculates the estimated date of birth for the client to be _________.
- A. 4/17.
- B. 4/10.
- C. 5/10.
- D. 5/17.
Correct answer: A
Rationale: Nagele's Rule is a common method used to estimate the due date. To calculate it, subtract 3 months and add 7 days to the first day of the last menstrual period. In this case, if the last menstrual period started on July 10, subtracting 3 months (April) and adding 7 days gives an estimated due date of April 17. This is the correct answer. Choices B, C, and D are incorrect because they do not follow the Nagele's Rule calculation method.
2. Which of the following statements is true of mutations?
- A. Mutations can only occur by chance.
- B. Mutations produce sperm and ova cells.
- C. Mutations occur through radiation or other environmental influences.
- D. Mutations help adenine combine with guanine to form the single spiral structure of DNA.
Correct answer: C
Rationale: The correct answer is C. Mutations can occur due to environmental influences such as radiation, chemicals, or other external factors, leading to changes in the DNA sequence. Choice A is incorrect because mutations can also occur due to errors in DNA replication, not solely by chance. Choice B is incorrect as mutations affect the DNA sequence itself, not the production of specific cells. Choice D is incorrect because mutations involve changes in the DNA sequence and do not specifically involve the formation of the DNA structure.
3. Is Duchenne muscular dystrophy a sex-linked abnormality?
- A. TRUE
- B. FALSE
- C. Sometimes
- D. Always
Correct answer: A
Rationale: The correct answer is A: TRUE. Duchenne muscular dystrophy is an X-linked recessive disorder, primarily affecting males. This is due to the inheritance of the mutated gene on the X chromosome. Choices B, C, and D are incorrect because Duchenne muscular dystrophy is specifically classified as a sex-linked disorder affecting males due to the inheritance pattern.
4. A client with preeclampsia is receiving magnesium sulfate by continuous IV infusion. Which finding should the nurse report to the provider?
- A. Blood pressure 148/94 mm Hg
- B. Respiratory rate 14/min
- C. Urinary output 20 mL/hr
- D. 2+ deep tendon reflexes
Correct answer: C
Rationale: In a client with preeclampsia receiving magnesium sulfate, a urinary output of 20 mL/hr is a concerning finding as it may indicate renal impairment or magnesium toxicity. Adequate urinary output is crucial for eliminating excess magnesium and preventing toxicity. The nurse should report this finding to the provider for further evaluation. A blood pressure of 148/94 mm Hg is elevated but expected in a client with preeclampsia. A respiratory rate of 14/min is within the normal range. 2+ deep tendon reflexes are a common finding in clients receiving magnesium sulfate and are not a cause for concern unless they progress to hyperreflexia or clonus.
5. Thalidomide was marketed in the 1960s as a treatment for:
- A. insomnia and nausea.
- B. infertility and impotence.
- C. Down syndrome.
- D. Turner syndrome.
Correct answer: A
Rationale: Thalidomide was initially marketed as a treatment for insomnia and nausea, particularly in pregnant women. However, it was later found to cause severe birth defects, leading to significant consequences. Choice B, infertility and impotence, is incorrect as thalidomide was not marketed for these conditions. Choices C and D, Down syndrome and Turner syndrome, are genetic conditions and not conditions for which thalidomide was intended as a treatment.
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