HESI RN
HESI Maternity Test Bank
1. A loading dose of terbutaline (Brethine) 250 mcg IV is prescribed for a client in preterm labor. Brethine 20 mg is added to 1,000 mL of D5W. How many milliliters of the solution should the nurse administer?
- A. 45
- B. 15 mL
- C. 4
- D. 13
Correct answer: D
Rationale: To calculate the amount of terbutaline to administer, first convert the dose to the same unit. 250 mcg = 0.25 mg. Next, set up a proportion: 20 mg is to 1000 mL as 0.25 mg is to X mL. Cross multiply and solve for X: 20 × X = 0.25 × 1000. X = (0.25 × 1000) / 20 = 12.5 mL. Therefore, the nurse should administer 13 mL of the solution. Choice A is incorrect as it does not reflect the correct calculation. Choice B is incorrect as it does not consider the accurate conversion and calculation. Choice C is incorrect as it is not the result of the correct proportion calculation.
2. 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.
3. Which intervention is most helpful in relieving postpartum uterine contractions or 'afterpains'?
- A. Lying prone with a pillow on the abdomen.
- B. Using a breast pump.
- C. Massaging the abdomen.
- D. Giving oxytocic medications.
Correct answer: A
Rationale: Lying prone with a pillow on the abdomen is the most helpful intervention in relieving postpartum uterine contractions or 'afterpains.' This position provides counter-pressure and support to the uterus, helping to alleviate discomfort and promote uterine involution. Choice B, using a breast pump, is not effective in relieving afterpains as it focuses on milk expression. Massaging the abdomen (Choice C) may help with discomfort but does not provide the same level of support as lying prone with a pillow. Giving oxytocic medications (Choice D) is not typically the first-line intervention for afterpains unless there are specific medical indications.
4. 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.
5. The nurse is caring for a client who experienced fetal demise at 32 weeks' gestation. After the fetus is delivered vaginally, the nurse implements fetal demise protocol and identification procedures. Which action is most important for the nurse to take?
- A. Create a memory box with the baby's footprint and photographs.
- B. Determine if the mother desires a visit from her clergy.
- C. Encourage the mother to hold and spend time with her baby.
- D. Explain the reasons for obtaining consent for an infant autopsy.
Correct answer: C
Rationale: Encouraging the mother to hold and spend time with her baby is crucial after a fetal demise at 32 weeks' gestation. This action can support the mother in the grieving process, facilitate bonding, and provide closure, helping her cope with the loss of the baby. Creating a memory box with the baby's footprint and photographs could be emotionally comforting but not as immediate and impactful as encouraging direct physical contact. While offering a visit from her clergy may provide spiritual support, the immediate need is to address the physical and emotional aspects of the situation. Explaining the reasons for obtaining consent for an infant autopsy is important, but it is secondary to the immediate emotional support needed by the mother.
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