Question

A 64-year-old with type 2 diabetes and eGFR 28 mL/min/1.73 m² asks about continuing metformin. What do current CKD guidance suggest?

Accepted Answer

Continue metformin if eGFR ≥30; discontinue if eGFR <30

Answer

Continue metformin at usual dose regardless of eGFR

Answer

Increase metformin dose to overcome insulin resistance

Answer

Stop metformin if eGFR <45

Answer

Switch to DPP‑4 inhibitor because safer at any eGFR

Practice question

A 64-year-old with type 2 diabetes and eGFR 28 mL/min/1.73 m² asks about continuing metformin. What do current CKD guidance suggest?