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. The healthcare provider prescribes oxytocin 2 milliunits/minute to induce labor for a client at 41-weeks gestation. The nurse initiates an infusion of Ringer’s Lactate solution 1000 mL with oxytocin 10 units. How many mL/hour should the nurse program the infusion pump?
- A. 12 mL/hour
- B. 2 mL/hour
- C. 22 mL/hour
- D. 42 mL/hour
Correct answer: A
Rationale: To calculate the infusion rate in mL/hour, first, convert 2 milliunits/minute to milliunits/hour by multiplying by 60 to get 120 milliunits/hour. Then, calculate the mL/hour using the formula: milliunits/hour (120) × total volume (1000 mL) ÷ units in IV solution (10 units) = 1200 mL/hour. Therefore, the nurse should program the infusion pump to deliver 12 mL/hour to provide the prescribed dose of oxytocin. Choice B is incorrect as it does not reflect the correct calculation. Choice C is incorrect as it is not derived from the correct formula. Choice D is incorrect as it is not the result of the accurate calculation based on the provided information.
3. The nurse is caring for a female client, a primigravida with preeclampsia. Findings include +2 proteinuria, BP 172/112 mmHg, facial and hand swelling, complaints of blurry vision and a severe frontal headache. Which medication should the nurse anticipate for this client?
- A. Clonidine hydrochloride
- B. Carbamazepine
- C. Furosemide
- D. Magnesium sulfate
Correct answer: D
Rationale: In the scenario presented, the client is exhibiting signs and symptoms of severe preeclampsia, including hypertension, proteinuria, facial and hand swelling, visual disturbances, and a severe headache. The medication of choice for preventing seizures in preeclampsia is magnesium sulfate. This drug helps to prevent and control seizures in clients with preeclampsia, making it the most appropriate option for this client. Clonidine hydrochloride (Choice A) is an antihypertensive medication used for managing hypertension but is not the first-line treatment for preeclampsia. Carbamazepine (Choice B) is an anticonvulsant used for seizure disorders like epilepsy and is not indicated for preeclampsia. Furosemide (Choice C) is a diuretic used to manage fluid retention but is not the drug of choice for treating preeclampsia.
4. Client teaching is an important part of the maternity nurse's role. Which factor has the greatest influence on successful teaching of the gravid client?
- A. The client's readiness to learn.
- B. The client's educational background.
- C. The order in which the information is presented.
- D. The extent to which the pregnancy was planned.
Correct answer: A
Rationale: The client's readiness to learn is the most critical factor influencing successful teaching of the gravid client. When a client is receptive and motivated to learn, they are more likely to engage with the information provided, leading to better understanding and retention.
5. An off-duty healthcare professional finds a woman in a supermarket parking lot delivering an infant while her husband is screaming for someone to help his wife. Which intervention has the highest priority?
- A. Use a sterile item to tie off the umbilical cord.
- B. Provide privacy for the woman.
- C. Reassure the husband and try to keep him calm.
- D. Put the newborn to breast.
Correct answer: D
Rationale: Putting the newborn to breast is the highest priority intervention in this scenario. It helps stimulate uterine contractions in the mother, which aids in controlling postpartum bleeding. Additionally, placing the newborn to breast promotes bonding between the mother and infant, provides comfort to the baby, and facilitates the initiation of breastfeeding. Ensuring the well-being of both the mother and the newborn is essential in this critical situation.
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