HESI RN
HESI Maternity Test Bank
1. A 34-week primigravida woman with preeclampsia is receiving Lactated Ringer’s 500ml with magnesium sulfate 20 grams at the rate of 3g/hr. How many ml/hr should the nurse program the infusion pump?
- A. 75ml/hr
 - B. 100ml/hr
 - C. 50ml/hr
 - D. 25ml/hr
 
Correct answer: A
Rationale: To calculate the infusion rate, divide the total quantity to be infused (500ml) by the total time (1 hour) which equals 500ml/hr. Since the magnesium sulfate is being given at 3g/hr, and 1g of magnesium sulfate is in 5ml of solution, the rate will be 3g/hr x 5ml/g = 15ml/hr. Therefore, the total infusion rate should be 500ml/hr + 15ml/hr = 515ml/hr. Hence, the nurse should program the infusion pump to deliver 75ml/hr (515ml/hr total - 500ml/hr Lactated Ringer's rate). This choice is correct because it accounts for both the Lactated Ringer's and magnesium sulfate rates. Choice B, 100ml/hr, is incorrect as it does not consider the additional magnesium sulfate infusion rate. Choice C, 50ml/hr, is incorrect because it does not account for the magnesium sulfate infusion. Choice D, 25ml/hr, is incorrect as it is too low and does not consider the magnesium sulfate being infused concurrently.
2. 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.
3. A 6-year-old with heart failure (HF) gained 2 pounds in the last 24 hours. Which intervention is more important for the nurse to implement?
- A. Graph the daily weight for the past week.
 - B. Decrease IV flow rate.
 - C. Assess bilateral lung sounds.
 - D. Restrict intake of oral fluids.
 
Correct answer: C
Rationale: Assessing bilateral lung sounds is crucial in this scenario as it can provide essential information about potential fluid accumulation in the lungs, indicating worsening heart failure. This assessment can guide immediate interventions to prevent further deterioration in the patient's condition.
4. A multiparous client is involuntarily pushing while being wheeled into the labor triage area. The nurse observes the fetal head presenting at the perineum. Which action should the nurse take?
- A. Support the infant as it emerges.
 - B. Review prenatal laboratory results.
 - C. Obtain fetal heart tones.
 - D. Apply suprapubic pressure.
 
Correct answer: A
Rationale: When the fetal head is visible at the perineum, the priority is to support the infant's birth to prevent injury. Providing support as the infant emerges helps ensure a safe delivery process and reduces the risk of complications associated with rapid or uncontrolled birth.
5. After breastfeeding for 10 minutes at each breast, a new mother calls the nurse to the postpartum room to help change the newborn's diaper. As the mother begins the diaper change, the newborn spits up the breast milk. What action should the nurse implement first?
- A. Wipe away the spit-up and assist the mother with the diaper change.
 - B. Sit the newborn upright and burp by rubbing or patting the upper back.
 - C. Place the newborn in a position with the head lower than the feet.
 - D. Turn the newborn to the side and use bulb suction for the mouth and nares.
 
Correct answer: B
Rationale: After a newborn spits up breast milk following feeding, the priority action for the nurse is to sit the newborn upright and burp by rubbing or patting the upper back. This position helps release trapped air and reduces the likelihood of further spit-up or aspiration. It is essential to address this first to prevent potential complications and ensure the newborn's comfort and safety.
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