CYSTATIN C

The cystatin C test measures the level of cystatin C, a protein produced by all nucleated cells, in the blood. This test is used to evaluate kidney function and assess the glomerular filtration rate (GFR). Elevated cystatin C levels can indicate impaired kidney function or reduced GFR, while low levels suggest normal kidney function. The cystatin C test is valuable for diagnosing and monitoring kidney diseases, especially in individuals where traditional markers such as serum creatinine may be unreliable. It provides a more accurate assessment of renal function and helps guide treatment decisions to manage kidney health effectively.