Cystatin C Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	$69.49	Coming soon
Results in	~5 business days	—
Sample type	Blood Serum	—
Require fasting	No	—

About the test

Cystatin C is a protein produced by all nucleated cells that is filtered by the kidneys. It serves as a sensitive and early marker of kidney function, often providing a more accurate assessment of glomerular filtration rate (GFR) than creatinine, especially in certain populations.

Included biomarkers & Reference ranges

Biomarker	Reference range
Cystatin C An alternative marker of kidney function that, unlike creatinine, isn't affected by muscle mass — useful for a more precise eGFR estimate.	0.5–1 mg/L

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

Not sure how to read your results? We can help.

Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.

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