Cystatin C Test: Advanced Kidney Function Assessment
Understanding the Cystatin C Test
The Cystatin C Test represents a significant advancement in kidney function assessment, providing healthcare professionals with a more accurate and reliable method for evaluating renal health. This sophisticated blood test measures cystatin C, a protein produced by all nucleated cells at a constant rate, making it an ideal marker for glomerular filtration rate (GFR) calculation. Unlike traditional creatinine tests that can be influenced by muscle mass, diet, and other factors, cystatin C offers superior precision in detecting early-stage kidney dysfunction.
What Does the Cystatin C Test Measure?
The Cystatin C Test provides comprehensive analysis of three critical components:
- Cystatin C Levels: Direct measurement of cystatin C protein concentration in the blood
- Estimated GFR: Calculated glomerular filtration rate based on cystatin C levels
- GFR Category: Classification of kidney function from normal to severely impaired
Who Should Consider This Test?
The Cystatin C Test is particularly beneficial for individuals experiencing or at risk for:
- Early detection of kidney disease in diabetic patients
- Monitoring kidney function in hypertensive individuals
- Patients with unexplained fatigue, swelling, or changes in urination patterns
- Elderly patients where muscle mass variations affect creatinine accuracy
- Individuals with chronic conditions affecting kidney health
- Patients with family history of kidney disorders
Key Benefits of Cystatin C Testing
- Superior Accuracy: More reliable than creatinine-based GFR calculations
- Early Detection: Identifies kidney dysfunction before significant damage occurs
- No Dietary Restrictions: Requires no special preparation or fasting
- Muscle Mass Independent: Not affected by variations in muscle mass
- Same-Day Results: Rapid turnaround with reports available same day
- Comprehensive Assessment: Provides complete kidney function profile
Understanding Your Test Results
Your Cystatin C Test results will provide valuable insights into your kidney health:
- Normal Results: Indicate healthy kidney function with proper filtration
- Elevated Cystatin C: May suggest reduced kidney function requiring further evaluation
- GFR Categories: Range from normal (≥90 mL/min) to severely impaired (<15 mL/min)
- Clinical Correlation: Results should be interpreted by your healthcare provider in context of your overall health
Test Pricing and Availability
| Test Name | Discount Price | Regular Price |
|---|---|---|
| Cystatin C Test | $36 USD | $40 USD |
Sample Requirements and Processing
- Sample Type: 2 mL (1 mL minimum) serum from 1 SST
- Shipping: Refrigerated or frozen transport required
- Required Information: Age and gender details mandatory
- Turnaround Time: Same-day results when samples submitted by 4 pm Monday, Wednesday, or Friday
- Methodology: Nephelometry with calculated GFR
Nationwide Testing Availability
We proudly serve patients across the United States with convenient testing locations in all major cities including New York, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, and San Jose. Our state-of-the-art facilities ensure consistent, high-quality testing standards nationwide.
Take Control of Your Kidney Health Today
Early detection of kidney dysfunction can significantly impact treatment outcomes and quality of life. The Cystatin C Test provides the most accurate assessment available, helping you and your healthcare provider make informed decisions about your renal health. Don’t wait for symptoms to appear – proactive testing is your best defense against kidney disease progression.
Ready to schedule your Cystatin C Test? Contact us today at +1(267) 388-9828 to book your appointment or speak with our knowledgeable staff about your testing needs. Take the first step toward comprehensive kidney health assessment with our advanced diagnostic services.

