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Test Code LAB4154 CORTISOL, PRE-DEXAMETHASONE

Specimen Type

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

Specimen Volume

1 mL

Minimum Volume

0.2 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Specimen Processing

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

Method

Electrochemiluminescence Immunoassay

Reference Ranges

Abnormality - Abnormal    <4.3 or >22.4 ug/dL
Reference Range    4.3-22.4 ug/dL

Reporting Limit

Measuring Range: 0.1 - 63.4 ug/dL

Reporting Range: 0.1 -634.0 ug/dL (Manual Dilution 1:10 with Diluent Universal 2)

Synonyms

Corran, Corticosteroid

CPT Codes

82533

Sample Stability

Room Temp: 1 day
Refrigerated: 4 days

Limitations

Biotin interference.