HESI LPN
Maternity HESI Practice Questions
1. What causes cystic fibrosis?
- A. Sex-linked abnormality.
- B. Abnormality in the 21st pair of chromosomes.
- C. Recessive gene.
- D. Single segment found only on the Y chromosome.
Correct answer: C
Rationale: Cystic fibrosis is a genetic disorder caused by inheriting two copies of a recessive gene, one from each parent. This means that both parents must carry at least one copy of the faulty gene for a child to inherit the condition. Choice A is incorrect because cystic fibrosis is not linked to the sex chromosomes. Choice B is incorrect as cystic fibrosis is not caused by an abnormality in the 21st pair of chromosomes but by a specific gene mutation. Choice D is also incorrect as cystic fibrosis is not related to the Y chromosome, which is specific to males.
2. 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.
3. A pregnant client mentions in her history that she changes the cat's litter box daily. Which test should the nurse anticipate the healthcare provider to prescribe?
- A. Biophysical profile
- B. Fern test
- C. Amniocentesis
- D. TORCH screening
Correct answer: D
Rationale: The correct answer is D, TORCH screening. TORCH screening is done to detect infections such as toxoplasmosis, which can be contracted from handling cat litter and is harmful during pregnancy. Biophysical profile (choice A) is a prenatal ultrasound evaluation. Fern test (choice B) is used to assess for amniotic fluid leakage. Amniocentesis (choice C) involves taking a sample of amniotic fluid to test for genetic abnormalities and certain infections, not specifically related to toxoplasmosis from cat litter.
4. A 25-year-old gravida 3, para 2 client gave birth to a 9-pound, 7-ounce boy 4 hours ago after augmentation of labor with oxytocin (Pitocin). She presses her call light and asks for her nurse right away, stating 'I’m bleeding a lot.' What is the most likely cause of postpartum hemorrhage in this client?
- A. Retained placental fragments.
- B. Unrepaired vaginal lacerations.
- C. Uterine atony.
- D. Puerperal infection.
Correct answer: C
Rationale: Uterine atony is the most likely cause of bleeding 4 hours after delivery, especially after delivering a macrosomic infant and augmenting labor with oxytocin. Uterine atony is characterized by the inability of the uterine muscles to contract effectively after childbirth, leading to excessive bleeding. The other options, such as retained placental fragments (A), unrepaired vaginal lacerations (B), and puerperal infection (D), are less likely causes of postpartum hemorrhage in this scenario. Retained placental fragments can cause bleeding, but this typically presents earlier than 4 hours postpartum. Unrepaired vaginal lacerations would likely be evident sooner and not typically result in significant bleeding. Puerperal infection is not a common cause of immediate postpartum hemorrhage unless there are other signs of infection present.
5. A nurse on an antepartum unit is reviewing the medical records for four clients. Which of the following clients should the nurse assess first?
- A. A client who has diabetes mellitus and an HbA1c of 5.8%
- B. A client who has preeclampsia and a creatinine level of 1.1 mg/dL
- C. A client who has hyperemesis gravidarum and a sodium level of 110 mEq/L
- D. A client who has placenta previa and a hematocrit of 36%
Correct answer: C
Rationale: A sodium level of 110 mEq/L is critically low and can indicate severe dehydration and electrolyte imbalance, requiring immediate intervention.
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