creatinine

Creatinine is a metabolic byproduct of creatine phosphate, typically used as an endogenous marker for estimating glomerular filtration rate (GFR). In the specific clinical trial context of the Instituto Nacional de Cardiologia Ignacio Chavez, exogenous creatinine is administered as an oral 5-gram load to perform a "Tubular Stress Test." This test, often conducted alongside a furosemide stress test, is designed to evaluate the secretory capacity and residual functional reserve of the proximal tubules in patients with chronic kidney disease (CKD). By measuring the clearance of an exogenous creatinine load, researchers aim to provide a more detailed assessment of renal tubular health compared to standard GFR measurements, which primarily reflect glomerular filtration.

Other names

2-amino-1-methyl-2-imidazolin-4-one1-methylhydantoin-2-imideCreatinine Powder