What are the substances that can be used for determine the GFR?

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Ahmed Al-Mukhtar

Cystatin C was the most precise and predictable in GFR function determination and then other ordinary parameters like urea, creatinine, uric acid, proteins etc.

with best regards.

Manal Hadi Kanaan

GFR can be directly measured by the clearance of exogenous filtration markers (e.g. inulin and iohexol) or calculated indirectly by the clearance of endogenous filtration markers (e.g. serum creatinine and cystatin C). Estimated GFR (eGFR) calculated by serum creatinine and/or cystatin C remains the most widely used method in clinical practice and epidemiologic research.

Article Measured GFR in Routine Clinical Practice—The Promise of Dri...