# eGFR Creatinine-Cystatin C Calculation With Albumin:Creatinine-Protein:Creatinine Ratios, Urine

> This test measures waste products in your blood and proteins in your urine to calculate how well your kidneys filter toxins. By combining markers like creatinine and cystatin C, it provides a highly accurate estimate of your kidney function and checks for signs of physical damage. This helps show whether you have early signs of chronic kidney disease, which is especially important for individuals with diabetes or high blood pressure. However, this test cannot determine the specific underlying cause of kidney stress or diagnose a condition without further medical evaluation.

- Labcorp code: 121065
- Category: [Heart & Metabolic](https://app.picardo.health/labs/tests/heart-metabolic.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=121065&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.