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

> This test measures kidney function by combining blood levels of creatinine and cystatin C to calculate a filtration rate, while also checking the urine for albumin, a type of protein. It helps show how well your kidneys are filtering waste and whether there is physical damage causing protein leakage, which is important for monitoring kidney health. This combination of markers helps identify or rule out different stages of chronic kidney disease more accurately than standard tests alone. However, this test does not determine the specific cause of kidney damage or diagnose a condition without further medical evaluation.

- Labcorp code: 121054
- 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=121054&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.