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Catalog #: 77445

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Creatinine is a waste product excreted from the blood into the urine via the kidney. Kidney Damage results in creatinine being retained in the blood. Creatinine clearance in the kidney gives a measure of the Glomerular Filtration Rate (GFR) and is the standard marker for renal function. Since its rate of excretion is constant, elevation of plasma creatinine is indicative of under-excretion, suggesting kidney impairment.