Cystatin C

This blood test checks the level of Cystatin C.

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Cystatin C FAQ

What is the Cystatin C test?

This blood test measures the level of Cystatin C.

Why is the Cystatin C test important?

Cystatin C test levels help assess the function of the kidney. There are also correlations between Cystatin C levels and cardiovascular disease and specific types of cancer.

What type of specimen will I submit?

This Cystatin C is a blood test.

Do I need to fast to take this test?

An 8-12 hour fast is recommended before testing.

How long does it take to get test results?

It typically takes 9 business days or less.

Accesa Labs does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider for specific health concerns.

Last updated on August 27, 2017

Cystatin C for $169

More About the Cystatin C Lab Test

The cystatin C test measures the blood level of cystatin C. Cystatin C is a protein that helps assess kidney function.

Cystatin C is a highly accurate way of assessing how well the kidneys are performing their function as filters for the body. While the creatinine test has traditionally been used in medicine as a core marker for measuring kidney function, the creatinine level can be subject to inaccuracies in certain situations. For example, creatinine blood levels are not highly sensitive and can be highly influenced by the muscle mass in the body.

The cystatin C blood level, like the creatinine level, rises as the rate of filtration by the kidney (i.e. the glomerular filtration rate). It appears to be more sensitive in detecting early kidney disease in most people. Newer research is looking into how cystatin C test results correlate with cardiovascular risk but the conclusiveness of any association is still unclear.

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