HESI RN
HESI Maternity 55 Questions Quizlet
1. The healthcare provider prescribes oxytocin 2 milliunits/minute to induce labor for a client at 41-weeks gestation. The nurse initiates an infusion of Ringer’s Lactate solution 1000 mL with oxytocin 10 units. How many mL/hour should the nurse program the infusion pump?
- A. 12 mL/hour
- B. 2 mL/hour
- C. 22 mL/hour
- D. 42 mL/hour
Correct answer: A
Rationale: To calculate the infusion rate in mL/hour, first, convert 2 milliunits/minute to milliunits/hour by multiplying by 60 to get 120 milliunits/hour. Then, calculate the mL/hour using the formula: milliunits/hour (120) × total volume (1000 mL) ÷ units in IV solution (10 units) = 1200 mL/hour. Therefore, the nurse should program the infusion pump to deliver 12 mL/hour to provide the prescribed dose of oxytocin. Choice B is incorrect as it does not reflect the correct calculation. Choice C is incorrect as it is not derived from the correct formula. Choice D is incorrect as it is not the result of the accurate calculation based on the provided information.
2. In which chromosome pattern is Duchenne disease inherited?
- A. Autosomal dominant
- B. Autosomal recessive
- C. X-linked recessive
- D. Mitochondrial
Correct answer: C
Rationale: Duchenne disease is caused by a mutation in the DMD gene located on the X chromosome, leading to an X-linked recessive inheritance pattern. Males are typically affected by this disorder as they have only one X chromosome, while females are carriers with one normal and one affected X chromosome.
3. A client at 18-weeks gestation was informed this morning that she has an elevated alpha-fetoprotein (AFP) level. After the healthcare provider leaves the room, the client asks what she should do next. What information should the nurse provide?
- A. Inform her that a repeat alpha-fetoprotein (AFP) should be evaluated.
- B. Discuss options for intrauterine surgical correction of congenital defects.
- C. Reassure the client that the AFP results are likely to be a false reading.
- D. Explain that a sonogram should be scheduled for definitive results.
Correct answer: D
Rationale: An elevated alpha-fetoprotein (AFP) level in a pregnant client can indicate potential congenital anomalies in the fetus. A follow-up sonogram is necessary to provide definitive results and further evaluate the fetus for any possible abnormalities. Therefore, it is essential for the nurse to explain to the client that scheduling a sonogram is the next appropriate step to assess the fetal well-being and address any concerns regarding the elevated AFP level. Choices A, B, and C are incorrect because a repeat AFP test alone, discussing surgical correction of defects, or assuming the results are false without further evaluation are not appropriate responses when dealing with a potentially serious issue like elevated AFP levels in pregnancy.
4. An infant with tetralogy of Fallot becomes acutely cyanotic and hyperneic. Which action should the nurse implement first?
- A. Place the infant in a knee-chest position.
- B. Administer morphine sulfate.
- C. Start intravenous fluids.
- D. Provide 100% oxygen by face mask.
Correct answer: A
Rationale: In a tetralogy of Fallot situation, placing the infant in a knee-chest position is the initial priority to help increase systemic vascular resistance, which reduces the right-to-left shunt and improves oxygenation. This position can assist in optimizing oxygen levels before considering other interventions. Administering morphine sulfate (choice B) is not the first-line treatment for tetralogy of Fallot crisis. Starting intravenous fluids (choice C) may be necessary but is not the priority in this situation. Providing 100% oxygen by face mask (choice D) may not fully address the underlying issue of decreased systemic vascular resistance that leads to cyanosis in tetralogy of Fallot.
5. During a woman's first prenatal visit, the nurse reviews her health care record, noting a history of chickenpox as a child and syphilis as a teenager. Which action is most important for the nurse to take?
- A. Obtain blood and urine for prenatal screens.
- B. Schedule prenatal visits to occur monthly.
- C. Explain common complications of pregnancy.
- D. Obtain baseline blood pressure and weight.
Correct answer: A
Rationale: Obtaining blood and urine for prenatal screens is crucial in identifying any potential infections or conditions that may require monitoring throughout the pregnancy. Screening for infections such as syphilis is essential to ensure appropriate management and prevent adverse outcomes. This action helps in early detection and timely intervention, promoting the health and well-being of both the mother and the developing fetus. The other options, while important during prenatal care, are not as critical as obtaining prenatal screens to assess for any existing infections that could impact the pregnancy.
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