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

Question

Accepted Answer

B. Hold metformin as ordered around the contrast study — Metformin may be held around iodinated contrast studies because contrast can worsen renal function, increasing the risk of lactic acidosis in susceptible clients.

Answer

A. Give double the metformin dose after the scan

Answer

C. Administer potassium before the scan

Answer

D. Encourage the client to skip food for 48 hours