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 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.
3. A one-day-old neonate develops a cephalohematoma. The nurse should closely assess this neonate for which common complication?
- A. Jaundice.
- B. Poor feeding.
- C. Brain injury.
- D. Hypoglycemia.
Correct answer: A
Rationale: A cephalohematoma is a collection of blood between the skull and the periosteum. As the blood breaks down, there is an increased risk of jaundice due to the release of bilirubin from the breakdown of red blood cells. Jaundice is a common complication associated with cephalohematoma in neonates. Therefore, the nurse should closely monitor the neonate for signs of jaundice and manage it accordingly.
4. A client is admitted to the postpartum unit and tells the nurse she had rheumatic fever as a child, which resulted in some 'heart damage'. The nurse knows that this client is at particular risk for developing heart failure during the immediate postpartum period. Based on the client's history, which nursing problem has the highest priority?
- A. Nausea and vomiting.
- B. Risk for infection.
- C. Sleep deprivation.
- D. Fluid volume excess.
Correct answer: D
Rationale: Fluid volume excess is a priority concern in this client, as heart damage from rheumatic fever can impair the heart's ability to manage increased blood volume postpartum, leading to potential heart failure. Monitoring and managing fluid volume status are crucial to prevent complications in this high-risk client. Choices A, B, and C are not the highest priority in this situation. Nausea and vomiting, risk for infection, and sleep deprivation are important but do not pose an immediate threat to the client's physiologic stability compared to the risk of heart failure due to fluid volume excess.
5. During a routine first-trimester prenatal exam, a pregnant client tells the nurse that she has noticed an increase in vaginal discharge that is white, thin, and watery. Which action should the nurse implement?
- A. Recommend explaining the normal physiological changes during pregnancy.
- B. Notify the healthcare provider of the complaint.
- C. Inform her that this is a normal physiological change.
- D. Prepare to provide education on vaginal health.
Correct answer: C
Rationale: The increased vaginal discharge described by the pregnant client, which is white, thin, and watery, is a common physiological change during pregnancy. It is typically normal and attributed to hormonal fluctuations. The nurse should reassure the client that this type of discharge is expected during pregnancy and does not typically indicate an issue requiring medical intervention or treatment.
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