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Geisinger Medical Laboratories Test Catalog
CYSTATIN C WITH EGFR |
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Geisinger Epic Procedure Code: LAB1029
Geisinger Epic ID: 52041
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SPECIMEN COLLECTION |
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Specimen type: |
Plasma or serum | |
Preferred collection container: |
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Specimen required: |
2 mL serum or plasma; minimum 0.2 mL | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. | |
Transport temperature: |
Refrigerated (2-8°C) preferred or frozen | |
Specimen stability: |
Room temperature or refrigerated: 7 days. Frozen serum: 24 months. Frozen plasma: 6 months. | |
Rejection criteria: |
Stability limits exceeded | |
TEST DETAILS |
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Reference interval: |
18-49 years: 0.63-1.03 mg/L > or =50 years: 0.67-1.21 mg/L <18 years: Undefined |
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Additional information: |
Estimated Glomerular Filtration Rate (eGFR) is calculated based on 2012 CKD-EPI Cystatin C equation. EGFR Calculator | National Kidney Foundation | |
CPT code(s): |
82610 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Cystatin C with Estimated GFR | |
Methodology: |
Immunoturbidity |
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Synonyms: |
CysC
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Clinical significance: |
Serum cystatin C is useful in the evaluation of kidney function. Unlike creatinine, it is independent from muscle mass and gender. An estimated glomerular filtration rate (eGFR) will accompany all serum or plasma cystatin C results. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu PhD, DABCC, FADLM | |
| Review Date: | 04/10/2024 | |