Measurement of creatinine has many applications. We review the determination of urinary creatinine as a valid index of completeness of 24-h urine collection, the clinical utility of the determination of creatinine clearance ratios, and measurement of the ratio of the clearance of specific analytes, such as amylase, to the ratio of clearance of creatinine. The chemistry and variables that affect...

background: accurate and rapid assessment of allograft function is essential in renal transplant recipients in order to detect allograft rejection and to monitor drug nephrotoxicity. we aimed to evaluate the usefulness of cystatin c as a marker of kidney allograft function in the early post-transplant period and to compare this value with that of conventional serum creatinine concentration.   m...