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The page below is a sample from the LabCE course Chronic Kidney Disease. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Calculated Estimates of GFR

In routine practice, GFR is estimated using special calculations that employ measurement of endogenous compounds exhibiting many, if not most, of the characteristics of an ideal biomarker of renal function.
Creatinine is the primary endogenous compounds measured to determine estimated GFR (eGFR) in clinical practice.
Other markers, such as Cystatin C, are becoming more common.