HESI RN
Wgu RN HESI Pharmacology Questions
Extract:
Question 1 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: B
Rationale: Erythromycin may reduce oral contraceptive efficacy. Additional contraception (e.g., condoms) prevents pregnancy. Stopping contraceptives, spacing doses, or avoiding sunlight are incorrect.
Question 2 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 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: B
Rationale: Erythromycin may reduce oral contraceptive efficacy by altering metabolism. Additional contraception prevents pregnancy. Stopping contraceptives, spacing doses, or avoiding sunlight are not necessary.
Question 4 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 5 of 5
The nurse is assessing a client who was recently diagnosed with Parkinson’s disease and is taking carbidopa-levodopa. The client is concerned that the medication is not working. Which intervention should the nurse implement first?
Correct Answer: D
Rationale: Clarifying the client’s concern about carbidopa-levodopa’s effectiveness guides targeted assessment. Urine color, dyskinesia, or meal timing are secondary until the specific issue is understood.