HESI RN
Herzing University HESI Maternity Questions
Extract:
Question 1 of 5
The healthcare provider prescribes magnesium sulfate 6 grams intravenously (IV) to be infused over 20 minutes for 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? (Enter numerical value only.)
Correct Answer: 450
Rationale:
To deliver 6 grams over 20 minutes from a solution of 20 grams in 500 mL, the concentration is 25 mL/g. Thus, 6 grams requires 150 mL over 20 min, which is (150 mL / 20 min) x 60 = 450 mL/hour.
Question 2 of 5
A new mother who is breastfeeding her 4-week-old infant and has type 1 diabetes, reports that her insulin needs have decreased since the birth of her child. Which action should the nurse implement?
Correct Answer: C
Rationale: Breastfeeding can lower insulin requirements due to increased energy expenditure, and informing the client of this normal change is appropriate.
Question 3 of 5
A client who had her first baby three months ago and is breastfeeding her infant tells the nurse that she is currently using the same diaphragm that she used before becoming pregnant. Which information should the nurse provide this client?
Correct Answer: B
Rationale: Pregnancy and childbirth can alter vaginal anatomy, making a pre-pregnancy diaphragm ineffective. An alternate contraception method is needed until a new diaphragm is fitted.
Question 4 of 5
A client at 18-weeks gestation was informed this morning that she has an elevated alpha-fetoprotein (AFP) level. After the healthcare provider leaves the room, the client asks what she should do next. What information should the nurse provide?
Correct Answer: D
Rationale: An elevated AFP level is a screening indicator, not a diagnosis. A sonogram is the next step to assess for neural tube defects or other anomalies, providing definitive information.
Question 5 of 5
The nurse is assessing a newborn who was precipitously delivered at 38-weeks gestation The newborn is tremulous, tachycardic, and hypertensive. Which assessment action is most important for the nurse to implement?
Correct Answer: A
Rationale: Tremulousness, tachycardia, and hypertension in a newborn suggest possible drug exposure, such as cocaine, requiring an urgent drug screen to guide treatment.