A 52-year-old with T2DM on metformin needs iodinated contrast for CT angiography. eGFR is 38 mL/min/1.73 m². What is the best metformin plan?...

Question

A 52-year-old with T2DM on metformin needs iodinated contrast for CT angiography. eGFR is 38 mL/min/1.73 m². What is the best metformin plan?

Accepted Answer

Hold metformin at the time of contrast and reassess renal function 48 hours after

Answer

Continue metformin without interruption

Answer

Stop metformin 7 days before and after contrast

Answer

Permanently discontinue metformin

Answer

Switch to glyburide instead

us-abim MCQ (SBA): Metformin and Contrast