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. What maternal behavior is typically observed when a new mother first receives her infant?
- A. She eagerly reaches for the infant, undresses the infant, and examines the infant completely.
- B. Her arms and hands receive the infant and she then traces the infant's profile with her fingertips.
- C. Her arms and hands receive the infant and she then cuddles the infant to her own body.
- D. She eagerly reaches for the infant and then holds the infant close to her own body.
Correct answer: B
Rationale: When a new mother first receives her infant, a typical maternal behavior is to use her arms and hands to receive the infant and then trace the infant's profile with her fingertips. This action is a gentle way of bonding with the newborn and aids in recognizing the infant's features. Choices A, C, and D are incorrect as they do not accurately describe the common behavior of tracing the infant's profile, which is a significant part of the initial interaction between a mother and her newborn.
3. An infant delivered vaginally by an HIV-positive mother is admitted to the newborn nursery. What intervention should the healthcare provider perform first?
- A. Bathe the infant with an antimicrobial soap.
- B. Measure the head and chest circumference.
- C. Obtain the infant's footprints.
- D. Administer vitamin K (AquaMEPHYTON).
Correct answer: A
Rationale: The initial intervention should be to bathe the infant with an antimicrobial soap to reduce the risk of HIV transmission from maternal fluids. This immediate action helps minimize potential exposure to the virus and promotes infection control practices in the care of infants born to HIV-positive mothers. Choice B, measuring head and chest circumference, is important for assessing growth and development but not the priority in this scenario. Choice C, obtaining footprints, is a routine procedure but not a priority over infection control measures. Choice D, administering vitamin K, is important for clotting factors but does not address the immediate risk of HIV transmission.
4. When performing the daily head-to-toe assessment of a 1-day-old newborn, the nurse observes a yellow tint to the skin on the forehead, sternum, and abdomen. Which action should the nurse take?
- A. Measure bilirubin levels using transcutaneous bilirubinometry.
- B. Evaluate cord blood Coombs test results.
- C. Review maternal medical records for blood type and Rh factor.
- D. Prepare the newborn for phototherapy.
Correct answer: A
Rationale: The presence of a yellow tint on the skin of a newborn suggests jaundice. The initial step in managing jaundice in a newborn is to measure bilirubin levels, typically done using transcutaneous bilirubinometry. This measurement helps determine the severity of jaundice and guides appropriate treatment interventions. Evaluating cord blood Coombs test results or reviewing maternal medical records for blood type and Rh factor are not the immediate actions indicated when jaundice is suspected. Phototherapy may be considered after confirming elevated bilirubin levels and assessing the need for treatment.
5. A client at 32-weeks gestation is diagnosed with preeclampsia. Which assessment finding is most indicative of an impending convulsion?
- A. 3+ deep tendon reflexes and hyperreflexia.
- B. Periorbital edema, flashing lights, and aura.
- C. Epigastric pain in the third trimester.
- D. Recent decreased urinary output.
Correct answer: A
Rationale: In a client with preeclampsia, 3+ deep tendon reflexes and hyperreflexia are indicative of severe preeclampsia. These neurological signs suggest an increased risk for seizures, making option A the most indicative of an impending convulsion. Choices B, C, and D are not directly associated with an impending convulsion in a client with preeclampsia.
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