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Test Code LAB5101 C-PEPTIDE

Important Note

Fasting specimen recommended.

Specimen Type

Preferred Sample: Lithium Heparin Tube (Mint Green Top)
Alternative Sample: Serum (SST, Gold, Tiger, Red Top Tube-no gel)

Collection Instructions

Fasting specimen recommended.

Specimen Volume

1 mL

Minimum Volume

0.5 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Sample Stability

Room temp: 24 hours

Refrigerated: 48 hours
Frozen: 3 months

Specimen Processing

Spin tube for 10 muntues. Store tubes in refrigerator until testing can be done.

Method

Immunoassay

Reference Ranges

C-Peptide: 0.78-5.19 ug/dL

Critical Values: None

 

Reporting Limit

Measuring Range: 0.03-30.0 ug/dL

Reporting Range: 0.03-30.0 ug/dL

Interference

Hemolysis: 500mg/dL

Icterus: 20 mg/dL

Lipemia: 2000mg/dL

Synonyms

CPEP, Connecting peptide of insulin, LAB5101

CPT Codes

84681