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. What advice is most important for a client in the first trimester of pregnancy experiencing nausea?
- A. Practice relaxation techniques when nausea begins.
- B. Increase fluid intake to 3 quarts daily.
- C. Avoid alcohol, caffeine, and smoking.
- D. Eliminate snacks between meals.
Correct answer: C
Rationale: During the first trimester of pregnancy, it is crucial to advise pregnant clients to avoid alcohol, caffeine, and smoking. These substances can worsen nausea and harm fetal development. By eliminating these substances, the client can help alleviate nausea and create a healthier environment for the developing fetus. Choices A, B, and D are not as critical in managing nausea during the first trimester. While relaxation techniques may help, avoiding harmful substances like alcohol, caffeine, and smoking takes precedence. Increasing fluid intake can be beneficial but not as crucial as avoiding harmful substances. Eliminating snacks between meals may not be necessary for all clients and is not directly related to managing nausea in the first trimester.
3. A new mother asks the LPN/LVN, 'How do I know that my daughter is getting enough breast milk?' Which explanation should the nurse provide?
- A. Weigh the baby daily, and if she is gaining weight, she is eating enough.
- B. Your milk is sufficient if the baby is voiding pale straw-colored urine 6 to 10 times a day.
- C. Offer the baby extra bottle milk after her feeding, and see if she is still hungry.
- D. If you're concerned, you might consider bottle feeding so that you can monitor her intake.
Correct answer: B
Rationale: The correct answer is B. Adequate voiding is a sign that the baby is receiving enough milk. Pale straw-colored urine 6 to 10 times a day indicates proper hydration and nutrition. This is a reliable indicator of adequate breast milk intake for the infant. Choice A is incorrect because weight gain alone may not always indicate sufficient milk intake. Choice C is incorrect because supplementing with bottle milk can interfere with establishing breastfeeding. Choice D is incorrect as it suggests switching to bottle feeding, which is not necessary if the baby is latching and voiding well.
4. Albumin 25% IV is prescribed for a child with nephrotic syndrome. Which assessment finding indicates to the nurse that the medication is having the desired effect?
- A. Weight gain.
- B. Reduction of fever.
- C. Improved caloric intake.
- D. Reduction of edema.
Correct answer: D
Rationale: The correct answer is D: Reduction of edema. Albumin helps reduce edema by increasing oncotic pressure, drawing fluid back into the blood vessels. In nephrotic syndrome, there is an abnormal loss of protein in the urine, leading to decreased oncotic pressure and fluid shifting into the interstitial spaces, causing edema. Administering albumin helps restore the oncotic pressure, reducing edema, which is a desirable effect of the medication.
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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