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Test Code LAB4062 CORTISOL, RANDOM

Important Note

Cortisol drawn after 0900 is considered random. Please order a Cortisol AM (Test code: LAB4063) for samples collected  between 0400-0900.

Specimen Type

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

Collection Instructions

Draw specimen after 9 am and before 4 am.

Specimen Volume

1 mL

Minimum Volume

0.5 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Sample Stability

Refrigerated: 14 days
Frozen: 30 days

Specimen Processing

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

Method

Chemiluminescent Microparticle Immunoassay (CMIA)

Reference Ranges

Cortisol, Random 2.9-17.3 ug/dL

The reference ranges for Cortisol are dependent on the time of draw.

Reporting Limit

Reporting Range: 1.0 -119.6 ug/dL

Interference

Hemolysis: 500mg/dL

Icterus: 20 mg/dL

Lipemia: 2000mg/dL

Synonyms

Corran, Corticosteroid, LAB4062

CPT Codes

82533