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Test Code LAB4063 CORTISOL AM

Important Note

Preferred draw time for AM Cortisol is 0800.

Order CORAM for any specimen drawn between 0400 and 0859

Specimen Type

Preferred Sample: Lithium Heparin Tube (Mint Green Top, Dark Green Top)
Alternative Sample: Serum (SST, Gold, Corvac, Tiger, Red Top Tube)

Specimen Volume

1 mL

Minimum Volume

0.5 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Method

Chemiluminescent Microparticle Immunoassay (CMIA)

Reference Ranges

Cortisol, AM:  3.7-19.4 ug/dL

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

Synonyms

CORTICOSTEROID, CORAM, HYDROCORTISONE, CUSHING'S SYNDROME, ADDISON'S DISEASE, CUSHINGS, ADDISONS, ADRENOCORTICOTROPIC HORMONE, ACTH

CPT Codes

82533

Specimen Processing

Spin tubes for 10 minutes Store tubes in refrigerator until testing can be done

Collection Instructions

Ideally specimen should be drawn at 0800. Must draw between 0400 and 0859. For single specimens drawn after 0859 please order a Cortisol random (Test code: CORRAN).

Specimen Stability

Refrigerated: 14 days
Frozen: 30 days

Rejection Criteria

Gross Hemolysis (hemolysis >500) 

Reporting Limit

Reporting Range: 1.0-119.6 ug/dL