HESI RN
RN HESI Pharmacology Exam 3 Questions
Extract:
Question 1 of 5
The nurse is caring for a client who takes methotrexate for rheumatoid arthritis and receives a prescription for adalimumab. Which instructions should the nurse provide the client?
Correct Answer: D
Rationale: Adalimumab, an immunosuppressant, increases infection risk. Avoiding crowds and sick individuals minimizes exposure, protecting the client’s compromised immune system. Chest x-rays, vaccinations, or eye exams are not specifically required for adalimumab initiation.
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 (D5W) 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: Convert 4 grams to 4000 mg. Infusion rate = (300 mg/hr) ÷ (4000 mg/500 mL) = 300 × 500 ÷ 4000 = 37.5 mL/hr. The pump should be set to 37.5 mL/hr.
Question 3 of 5
A client receives a prescription for penicillin 2 million units IM. The available vial is labeled, '600,000 units/2 mL.' How many mL should the nurse administer? (Enter numeric value only.)
Correct Answer: 4
Rationale:
To calculate: (2,000,000 units prescribed) ÷ (600,000 units/2 mL) = 2,000,000 × 2 ÷ 600,000 = 4 mL. The nurse should administer 4 mL to deliver the prescribed 2 million units.
Question 4 of 5
A client receives a prescription for allopurinol. Which information provided by the client requires additional instruction by the nurse?
Correct Answer: A
Rationale: Doubling a missed allopurinol dose risks toxicity and is incorrect; clients should take it as soon as remembered or skip it if near the next dose. Reducing caffeine/alcohol, taking with food, and hydration are appropriate to manage uric acid and GI effects.
Question 5 of 5
The nurse administers naloxone to a client with opioid-induced respiratory depression. One hour later, nursing assessment reveals that the client has a respiratory rate of 4 breaths/minute, oxygen saturation of 75%, and is unable to be aroused. Which action should the nurse implement?
Correct Answer: D
Rationale: Persistent respiratory depression (4 breaths/minute, 75% oxygen saturation) suggests ongoing opioid toxicity. A second dose of naloxone is needed to reverse opioid effects, as the initial dose may have worn off or been insufficient. CPR, chest tubes, or GCS assessment do not address the opioid-related cause.