![yuth image](http://lifenity.uk/LIFENITY_UK_DOCS/871_Creatinine.jpg)
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£10
Tests Parameters
1
Report Availability
The test most frequently used to evaluate renal function is the creatinine assay in serum or plasma. A byproduct of creatine phosphate breakdown in muscle, creatinine is typically produced by the body at a fairly steady rate (dependent on muscle mass). Under normal circumstances, it is not significantly reabsorbed by the tubules after being freely filtered by the glomeruli. Additionally, a tiny but substantial amount is actively secreted.