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CYSTATIN C
Number 1156
CPT Code 82610
Alias
Specimen Container SST
Specimen Type Serum
Turn Around Time
Days Performed
Reference Range 0.53-0.95 mg/L
Alternate Specimen
Volume 1 mL Serum
Stability Ambient 14 Days
Stability Refrigerated 14 Days
Stability Frozen 14 Days
Patient Preparation
Overnight fasting is preferred.
Methodology
Immunologic
Limitations
Cystatin C has not been shown to be affected by factors such as muscle mass and nutrition, factors which have been demonstrated to affect creatinine values. In addition, a rise in creatinine does not become evident until the GFR has fallen by approximately 50%.
Rejection Criteria
Additional Instructions
Specimen other than serum or heparinized plasma; gross lipemia that cannot be cleared by ultracentrifugation
Performing Laboratory Reference Laboratory
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