Accurate measurement of glomerular filtration rate as an indicator of renal function is of crucial importance because clinical decision-making at many occasions depend on the results obtained. In routine clinical practice, renal function is commonly evaluated with formulas that provide estimations of glomerular filtration rate (eGFR). These equations are mathematical models relying on the levels of endogenous markers, such as serum creatinine or cystatin-C, and variables such as weight, height, and gender.
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