Estimated creatinine clearance
NCLEX-RN glossary · Reduction Of Risk Potential
Definition
A calculated quantitative derivation (utilizing the Cockcroft-Gault formula in the supplied protocol) that uses age, weight, and serum creatinine to estimate the glomerular filtration rate.
Estimated creatinine clearance in plain English
It provides a more accurate assessment of renal filtration than serum creatinine alone, which is essential for safe medication dosing in clients with reduced muscle mass. The tempting mistake is relying on a 'normal' serum creatinine result in an elderly or frail client without calculating clearance, leading to the toxic accumulation of renal-cleared drugs.
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