Question

A 70-year-old with CKD G3bA3 (eGFR 38; UACR 420 mg/g) and hypertension is on an ARB. According to CKD guidelines, which additional test best refines GFR estimation for drug dosing and risk?

Accepted Answer

Serum cystatin C to calculate creatinine-cystatin C eGFR

Answer

24-hour creatinine clearance

Answer

Urinary urea nitrogen

Answer

Serum myoglobin

Answer

No testing; creatinine eGFR is sufficient in all cases

Practice question

A 70-year-old with CKD G3bA3 (eGFR 38; UACR 420 mg/g) and hypertension is on an ARB. According to CKD guidelines, which additional test best refines GFR estimation for drug dosing and risk?