Question

A 68-year-old man with type 2 diabetes on Metformin is scheduled for a CT scan with iodinated contrast. His eGFR is 40 mL per min per 1.73 m squared. What is the most appropriate advice regarding Metformin?

Accepted Answer

Stop Metformin on the day of contrast and for 48 hours afterwards, restarting if renal function remains stable

Answer

Continue Metformin as usual without change

Answer

Stop Metformin permanently

Answer

Double the dose of Metformin for better glycaemic control

Answer

Only stop Metformin if eGFR falls below 60 mL per min per 1.73 m squared

Practice question

A 68-year-old man with type 2 diabetes on Metformin is scheduled for a CT scan with iodinated contrast. His eGFR is 40 mL per min per 1.73 m squared. What is the most appropriate advice regarding Metformin?