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. Upon admission to the prenatal clinic, a 23-year-old woman informs the nurse that her last menstrual period began on February 15, and that previously her periods were regular. Her pregnancy test is positive. What is this client's expected date of delivery (EDD)?
- A. November 22.
- B. November 8.
- C. December 22.
- D. October 22.
Correct answer: A
Rationale: To determine the expected date of delivery (EDD) using Nägele's rule, add 7 days to the first day of the last menstrual period (LMP) which is February 15, resulting in February 22. Then, subtract 3 months from February 22, which gives November 22 as the estimated due date.
3. A child with ADHD needs help with homework. What should the nurse encourage the parents to do?
- A. Encourage the parents to help the child with homework.
- B. Do the homework for the child.
- C. Set a regular homework schedule.
- D. Provide a quiet environment for homework.
Correct answer: A
Rationale: Encouraging parents to help the child with homework is the most appropriate course of action. By assisting the child, parents can provide necessary support and guidance without taking over the task entirely. This approach fosters independence and helps the child develop academic skills. Option B, doing the homework for the child, is counterproductive as it does not empower the child to learn and grow independently. Option C, setting a regular homework schedule, is important but does not address the immediate need for assistance. Option D, providing a quiet environment for homework, is helpful but does not directly involve parents in supporting the child's academic progress.
4. 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.
5. The healthcare provider is preparing to administer methylergonovine maleate (Methergine) to a postpartum client. Based on what assessment finding should the healthcare provider withhold the drug?
- A. Respiratory rate of 22 breaths/min
- B. A large amount of lochia rubra
- C. Blood pressure 149/90
- D. Positive Homan’s sign
Correct answer: C
Rationale: A blood pressure of 149/90 is an indication to withhold Methergine due to its potential to further increase blood pressure. Methergine is a medication that can cause vasoconstriction, leading to elevated blood pressure. In this case, administering Methergine could exacerbate the elevated blood pressure, posing a risk to the patient. Therefore, it is crucial to withhold the medication in the presence of hypertension to prevent adverse effects. The other options are not directly related to the administration of Methergine. A respiratory rate of 22 breaths/min is within the normal range. A large amount of lochia rubra may indicate normal postpartum bleeding. A positive Homan’s sign is associated with deep vein thrombosis, which is not a contraindication for administering Methergine.
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