HESI RN
Wgu RN HESI Pharmacology Questions
Extract:
Question 1 of 5
A client receives a prescription for penicillin G 1,000,000 units intramuscular (IM) daily. The medication is available in 1,200,000 units/2 mL syringe. How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 1.7
Rationale: Calculate: (1,000,000 units ÷ 1,200,000 units) × 2 mL = 1.67 mL, rounded to 1.7 mL. This ensures the correct dose of penicillin G is administered intramuscularly.
Question 2 of 5
The nurse administers the initial dose of cefoxitin to a client whose medical record indicates an allergy to penicillin. Which finding is most important for the nurse to report to the healthcare provider?
Correct Answer: B
Rationale: Pruritis and rash suggest a possible allergic reaction to cefoxitin, a cephalosporin, due to cross-reactivity with penicillin. This requires immediate reporting. Renal output, GI symptoms, and vaginal discharge are less specific to allergic responses.
Question 3 of 5
Which assessment finding indicates to the nurse that the prescription bethanechol is effective for a client diagnosed with urinary retention?
Correct Answer: A
Rationale: Bethanechol stimulates bladder contraction, improving urinary retention. Equal urinary output to intake indicates effective bladder emptying. Dribbling, stress incontinence, and xerostomia are less direct indicators.
Question 4 of 5
The nurse is providing medication teaching to a client with bipolar disorder who receives a prescription for lithium carbonate. Which instruction should the nurse emphasize with the client?
Correct Answer: B
Rationale: Adequate fluid intake (1,500-3,000 mL/day) prevents dehydration, which can elevate lithium levels and risk toxicity. Food intake, weight reporting, or fliers are less critical to lithium safety.
Question 5 of 5
To control asthma, a client in a residential treatment facility uses a fluticasone propionate and salmeterol discus inhalation system, which provides an inhaled powdered form of these combined medications. Which instruction should the nurse provide to this client's caregivers?
Correct Answer: B
Rationale: Fluticasone/salmeterol is for maintenance, used twice daily maximum to avoid side effects. Rapid exhalation, acute attack use, or hypotension are incorrect.