HESI LPN
HESI Maternal Newborn
1. Which of the following illnesses causes degeneration of the central nervous system?
- A. Tay-Sachs disease
- B. Cystic fibrosis
- C. Turner syndrome
- D. Klinefelter syndrome
Correct answer: A
Rationale: Tay-Sachs disease is a genetic disorder that causes a progressive degeneration of the central nervous system, particularly in infants. Choice B, Cystic fibrosis, is a genetic disorder that primarily affects the lungs and digestive system, not the central nervous system. Choices C and D, Turner syndrome and Klinefelter syndrome, are chromosomal disorders that do not directly involve degeneration of the central nervous system.
2. When obtaining a health history from a client, a nurse in a woman’s health clinic should identify which of the following findings as increasing the client’s risk for developing pelvic inflammatory disease (PID)?
- A. Recurrent Cystitis
- B. Frequent Alcohol Use
- C. Use of Oral Contraceptives
- D. Chlamydia Infection
Correct answer: D
Rationale: Chlamydia infection is a significant risk factor for developing pelvic inflammatory disease (PID). PID is often caused by untreated sexually transmitted infections (STIs) like Chlamydia and Gonorrhea that ascend from the vagina to the upper reproductive organs. Recurrent cystitis (choice A) is more related to urinary tract infections, frequent alcohol use (choice B) is not directly linked to PID, and the use of oral contraceptives (choice C) does not increase the risk of developing PID.
3. Which of the following statements is true of menstruation?
- A. During this time, the endometrium is shed.
- B. During this time, an unfertilized egg is discharged.
- C. During this time, a female can engage in sexual activity with her partner.
- D. During this time, a fertilized egg implants in the uterine lining.
Correct answer: B
Rationale: The correct statement regarding menstruation is that during this time, an unfertilized egg is discharged along with the shedding of the uterine lining. Choice A is incorrect because the endometrium is shed during menstruation. Choice C is incorrect as menstruation does not prevent a female from engaging in sexual activity with her partner. Choice D is incorrect as a fertilized egg does not undergo mitosis during menstruation but rather implants in the uterine lining for further development.
4. A client is preparing to administer methylergonovine 0.2 mg orally to a client who is 2 hr postpartum and has a boggy uterus. For which of the following assessment findings should the nurse withhold the medication?
- A. Blood pressure 142/92 mm Hg
- B. Urine output 100 mL in 1 hr
- C. Pulse 58/min
- D. Respiratory rate 14/min
Correct answer: A
Rationale: The correct answer is A. Methylergonovine can increase blood pressure, so it should be withheld if the client has hypertension. A blood pressure reading of 142/92 mm Hg indicates hypertension and is a contraindication for administering methylergonovine. Choices B, C, and D are within normal limits and not contraindications for administering this medication. Urine output, pulse rate, and respiratory rate are not factors that determine the appropriateness of administering methylergonovine in this situation.
5. How many pairs of autosomes does a human zygote contain?
- A. 46
- B. 44
- C. 23
- D. 22
Correct answer: D
Rationale: A human zygote contains 22 pairs of autosomes and one pair of sex chromosomes, totaling 46 chromosomes. Therefore, the correct answer is 22. Choices A, B, and C are incorrect because they do not accurately represent the number of autosomes in a human zygote. Option A (46) represents the total number of chromosomes in a human zygote, not the number of autosomes. Option B (44) is incorrect as it does not account for the correct number of autosomes. Option C (23) is inaccurate since it represents the total number of chromosomes in a human gamete, not the number of autosomes in a zygote.
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