HESI RN
HESI RN D441 Pharmacology 0A1 Questions
Extract:
Question 1 of 5
The healthcare provider prescribes magnesium sulfate 300 mg/hour IV. The IV bag contains magnesium sulfate 4 grams in dextrose 5% in water (DW) 500 mL. How many mL/hour should the nurse set the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 37.5
Rationale: Concentration = 4000 mg / 500 mL = 8 mg/mL. Infusion rate = Prescribed dose (300 mg/hour) / Concentration (8 mg/mL) = 37.5 mL/hour.
Question 2 of 5
The healthcare provider prescribes magnesium sulfate 300 mg/hour IV. The IV bag contains magnesium sulfate 4 grams in dextrose 5% in water (DW) 500 mL. How many mL/hour should the nurse set the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 37.5
Rationale: Concentration = 4000 mg / 500 mL = 8 mg/mL. Infusion rate = Prescribed dose (300 mg/hour) / Concentration (8 mg/mL) = 37.5 mL/hour.
Question 3 of 5
A client who is taking an oral contraceptive receives a new prescription for erythromycin. Which instruction should the nurse provide to the client?
Correct Answer: A
Rationale: Erythromycin may reduce the effectiveness of oral contraceptives. Using an additional form of contraception ensures protection against unintended pregnancy during antibiotic treatment.
Question 4 of 5
A client with benign prostatic hyperplasia receives a new prescription of tamsulosin. Which intervention should the nurse perform to monitor for an adverse reaction?
Correct Answer: B
Rationale: Tamsulosin, an alpha-1 antagonist, can cause hypotension, especially when initiating treatment. Monitoring blood pressure is essential to detect significant drops that could lead to dizziness or fainting, ensuring client safety.
Question 5 of 5
A client is receiving orlistat as part of a weight management program. Which ongoing assessment should be included in the plan of care to determine the effectiveness of the medication?
Correct Answer: B
Rationale: Orlistat inhibits fat absorption to promote weight loss. Monitoring BMI is the most direct way to assess its effectiveness, as it tracks changes in weight status over time, reflecting the medication’s impact on the client’s weight management program.