HESI RN
HESI Maternity Test Bank
1. The healthcare provider prescribes magnesium sulfate 6 grams intravenously (IV) to be infused over 20 minutes for a client with preterm labor. The IV bag contains magnesium sulfate 20 grams in dextrose 5% in water 500 mL. How many mL/hour should the nurse set the infusion pump?
- A. 150 mL/hour
- B. 250 mL/hour
- C. 50 mL/hour
- D. 275 mL/hour
Correct answer: A
Rationale: To calculate the infusion rate, first, determine the total volume to be infused (6 grams of magnesium sulfate) over a specific time frame (20 minutes). Then, calculate the concentration of magnesium sulfate in the IV bag to determine the mL/hour rate. The IV bag contains 20 grams of magnesium sulfate in 500 mL of solution, which means there are 4 grams of magnesium sulfate per 100 mL. Since 6 grams are required, the nurse should set the pump to deliver 150 mL/hour to infuse the prescribed dose over 20 minutes. Choice B, 250 mL/hour, is incorrect because it miscalculates the amount of magnesium sulfate infused per hour. Choice C, 50 mL/hour, is incorrect as it is too slow to deliver the required dose in the specified time frame. Choice D, 275 mL/hour, is incorrect as it overestimates the infusion rate and would deliver the dose too quickly.
2. The client is 24 hours postpartum and is being discharged. The nurse explains that vaginal discharge will change from red to pink and then to white. If the client starts having red bleeding after the color changes, what should the nurse instruct the client to do?
- A. Reduce activity level and notify the healthcare provider.
- B. Go to bed and assume a knee-chest position.
- C. Massage the uterus and go to the emergency room.
- D. Do not worry as this is a normal occurrence.
Correct answer: A
Rationale: If the client experiences red bleeding after the color changes, it may indicate possible hemorrhage or retained placental fragments, which require immediate attention. Instructing the client to reduce activity level and notify the healthcare provider is crucial for prompt evaluation and management of potential complications.
3. Immediately after birth, a newborn infant is suctioned, dried, and placed under a radiant warmer. The infant has spontaneous respirations, and the nurse assesses an apical heart rate of 80 beats/minute and respirations of 20 breaths/minute. What action should the nurse take next?
- A. Initiate positive pressure ventilation.
- B. Intervene after the one-minute Apgar assessment.
- C. Initiate CPR on the infant.
- D. Assess the infant's blood glucose level.
Correct answer: A
Rationale: A heart rate below 100 bpm in a newborn indicates bradycardia and requires intervention. Positive pressure ventilation should be initiated to improve oxygenation and help increase the infant's heart rate. This intervention is crucial to support the newborn's transition to extrauterine life and prevent further complications.
4. The LPN/LVN is providing discharge teaching for a client who is 24 hours postpartum. The nurse explains to the client that her vaginal discharge will change from red to pink and then to white. The client asks, 'What if I start having red bleeding after it changes?' What should the nurse instruct the client to do?
- A. Reduce activity level and notify the healthcare provider.
- B. Go to bed and assume a knee-chest position.
- C. Massage the uterus and go to the emergency room.
- D. Do not worry as this is a normal occurrence.
Correct answer: A
Rationale: If the client experiences a return to red bleeding after transitioning to pink and white, it may indicate possible complications like hemorrhage or retained placental fragments. Instructing the client to reduce activity level and promptly notify the healthcare provider is crucial for timely evaluation and management of these potentially serious postpartum complications. Choice B is incorrect as assuming a knee-chest position is not the appropriate action for red bleeding postpartum. Choice C is incorrect as massaging the uterus without professional assessment can be dangerous. Choice D is incorrect because red bleeding after transitioning is not normal and should be evaluated promptly.
5. The healthcare provider is assessing a 2-hour-old infant born by cesarean delivery at 39-weeks gestation. Which assessment finding should receive the highest priority when planning the infant’s care?
- A. Blood pressure 76/42 mmHg.
- B. Faint heart murmur.
- C. Respiratory rate of 76 breaths/minute.
- D. Blood glucose 45 mg/dl.
Correct answer: C
Rationale: A high respiratory rate in a newborn is concerning as it may indicate respiratory distress, which requires immediate attention to ensure adequate oxygenation. Monitoring and addressing respiratory issues take precedence over other parameters in the initial assessment of a newborn. The blood pressure, heart murmur, and blood glucose levels are important but not as urgent as addressing potential respiratory distress in a newborn.
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