Wgu RN HESI Pharmocology

Extract:

Question 1 of 5

A client is receiving intravenous (IV) vancomycin and the nurse plans to draw blood for a peak and trough to determine the serum level of the drug. Which collection times provide the best determination of these levels?

Correct Answer: A

Rationale: Vancomycin peak is typically drawn 1 hour post-infusion, trough 30-60 minutes pre-dose (matches 55-Q30/38, answer
B). Option A may overestimate peak but is provided as correct. Other timings (C,
D) miss accurate concentrations. Note: Confirm if B is intended.

Question 2 of 5

The nurse is providing instructions about a client's new medications. How should the nurse explain the purpose of probenecid, a uricosuric drug?

A. Increases the strength of the urine stream. B. Prevents the formation of kidney stones. C. Decreases pain and burning during urination. D. Promotes excretion of uric acid in the urine.

Correct Answer: D

Rationale: Probenecid increases uric acid excretion (
D) to treat gout. It doesn’t strengthen urine stream (
A), prevent kidney stones (
B), or reduce urinary pain (
C).

Question 3 of 5

The nurse is planning the home care of a client who is receiving a mydriatic medication. Which environment is best for this client?

A. A cool, humidified air. B. A quiet, restful environment. C. A dimly lit room. D. A warm room temperature.

Correct Answer: C

Rationale: Mydriatic medications dilate pupils, increasing light sensitivity. A dimly lit room (
C) reduces discomfort. Cool air (
A), quiet environment (
B), and warm temperature (
D) are less relevant.

Question 4 of 5

A client is receiving intravenous (IV) vancomycin and the nurse plans to draw blood for a peak and trough to determine the serum level of the drug. Which collection times provide the best determination of these levels?

A. Immediately after completion of the IV dose and 30 minutes before the next administration of the medication. B. One hour after completion of the IV dose and one hour before the next administration of the medication. C. Thirty minutes into the administration of the IV dose and 30 minutes before the next administration of the medication. D. Two hours after completion of the IV dose and two hours before the next administration of the medication.

Correct Answer: A

Rationale: Vancomycin peak is typically drawn 1 hour post-infusion, trough 30-60 minutes pre-dose (matches 55-Q30/38, answer
B). Option A may overestimate peak but is provided as correct. Other timings (C,
D) miss accurate concentrations. Note: Confirm if B is intended.

Question 5 of 5

A client with chemotherapy-induced nausea receives a prescription for metoclopramide. Which adverse effect is most important for the nurse to report?

A. Diarrhea. B. Involuntary movements. C. Nausea. D. Unusual irritability.

Correct Answer: B

Rationale: Involuntary movements (
B), such as tardive dyskinesia, are a serious, potentially irreversible metoclopramide side effect (matches 55-Q5/12). Diarrhea (
A) and irritability (
D) are less severe. Nausea (
C) is the treated condition.

Wgu RN HESI Pharmocology | Nurselytic

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HESI RN

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