CYSTATIN C

• CPT Code: 82610
• LOINC: 33863-2
• Specimen Type: red gel
• Frequency: Mon - Fri; analytic time 2 days
• Instructions: Overnight fasting preferred. Refrigerated serum from SST 1.0mL (0.5 mL min) Separate serum or plasma from cells ASAP or w/in 2 hours of collection
• Text: Cystatin C is a highly sensitive and specific marker of glomerular filtration rate (renal function). Cystatin C is independent of muscle mass, age, and body mass index. Cystatin C is also used to assess renal allograft function.
• Methodology: Turbidometric