Cystatin C— Normal Range & What Your Result Means

Normal Cystatin C range (Cystatin C, mg/L)

  • Adults0.5–1 mg/L

Ranges are typical adult values and vary between labs. Use the range on your own report.

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What is Cystatin C (Cystatin C)?

Cystatin C is measured as part of a kidney function panel. Your Cystatin C is normal, suggesting good kidney filtration.

What does a high Cystatin C mean?

Your Cystatin C is elevated, which suggests reduced kidney filtration. It's a sensitive kidney marker, sometimes used alongside creatinine and eGFR.

Understand your whole report, not just one number

A single value rarely tells the full story — Cystatin C is best read alongside the rest of your panel. Paste your values or upload your report and get a plain-English explanation of every marker, with the important results flagged.

Cystatin C: frequently asked questions

What is a normal Cystatin C level?

A normal Cystatin C (Cystatin C) level is 0.5–1 mg/L for adults. Reference ranges vary slightly between laboratories, so always compare against the range printed on your own report.

What does a high Cystatin C mean?

Your Cystatin C is elevated, which suggests reduced kidney filtration. It's a sensitive kidney marker, sometimes used alongside creatinine and eGFR.

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