RN Exam Practice
Pharmacological and Parenteral TherapiesQuestion 609 of 2368

A client who takes metformin is scheduled for a CT scan with intravenous iodinated contrast. Which action should the nurse anticipate?

  1. Temporarily discontinuing the metformin
  2. Doubling the metformin dose
  3. Giving the metformin with a larger meal
  4. Changing the metformin to bedtime dosing
Show answer

Correct answer: Temporarily discontinuing the metformin

Contrast may acutely alter kidney function, so metformin should be temporarily discontinued before such studies.

Source: Nursing Pharmacology, 2nd edition (Open RN, Chippewa Valley Technical College, 2023), Endocrine System: Metformin. Licensed under CC BY 4.0.

Practice the topic "Pharmacological and Parenteral Therapies"

Questions last reviewed: 18 October 2026