HESI RN
HESI Maternity Test Bank Questions
Question 1 of 9
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?
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).
Question 2 of 9
The healthcare provider is preparing to suture a 10-year-old with a lacerated forehead. Both parents and the 12-year-old sibling are at the child's bedside. Which instruction best supports the family?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 9
A woman who delivered a 9-pound baby via cesarean section under spinal anesthesia is recovering in the post-anesthesia care unit. Her fundus is firm at the umbilicus, and a continuous trickle of bright red blood with no clots is observed by the nurse. Which action should the nurse implement?
Correct Answer: A
Rationale: In this situation, continuous bleeding despite a firm fundus suggests a possible laceration. The appropriate action for the nurse to take is to assess the woman's blood pressure. This helps determine the severity of blood loss and guides further interventions, such as identifying the need for additional assessments or interventions to control bleeding.
Question 4 of 9
Insulin therapy is initiated for a 12-year-old child who is admitted with diabetic ketoacidosis (DKA). Which action is most important for the nurse to include in the child's plan of care?
Correct Answer: A
Rationale: In managing diabetic ketoacidosis (DKA), monitoring serum glucose levels is crucial to adjust the infusion rate of regular insulin effectively. This helps in controlling blood glucose levels and preventing complications associated with DKA. Close monitoring and adjustments based on glucose levels are essential for the successful management of DKA.
Question 5 of 9
A 4-week-old premature infant has been receiving epoetin alfa (Epogen) for the last three weeks. Which assessment finding indicates to the healthcare provider that the drug is effective?
Correct Answer: C
Rationale: The correct answer is C. Epoetin alfa stimulates erythropoiesis, leading to an increase in red blood cell production and improving oxygen-carrying capacity. As the oxygenation status improves, there is a reduction in heart rate. Therefore, changes in apical heart rate from the 180s to the 140s indicate that the drug is effective.
Question 6 of 9
When should the LPN/LVN encourage the laboring client to begin pushing?
Correct Answer: C
Rationale: The LPN/LVN should encourage the laboring client to begin pushing when the cervix is completely dilated to 10 centimeters. Pushing before full dilation can lead to cervical injury and ineffective labor progress. By waiting for complete dilation, the client can push effectively, aiding in the descent of the baby through the birth canal.
Question 7 of 9
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?
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. In this case, with 20 grams of magnesium sulfate in 500 mL of solution, 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. This calculation ensures the correct dose is delivered within the specified time frame.
Question 8 of 9
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?
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.
Question 9 of 9
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?
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).