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Labcorp Oklahoma, Inc.
Test Directory


Index:

Cortisol Serum Total

Order Name TOT CORTIS
Test Number: 4400350
Revision Date 05/03/2021
Test Name Methodology LOINC Code
Cortisol Total
Chemiluminescent Micropartical Immunoassay 43215-3 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1mL (0.5 mL) Serum Clot Activator SST Refrigerated
Alternate 1 1mL (0.5 mL) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Instructions This test is for random or timed collections. The result will be reported with a footnote containing the reference ranges for AM and PM collections.
For specific timed collections:
Remove plasma/serum from cells/clot/separator within 8hrs of collection.
The AM cortisol level should be collected within 1-2 hours after the normal waking time of the patient.
The PM cortisol level should be collected within 8-14 hours after the normal waking time of the patient.
Stability: Ambient 8hrs. Refrigerated 14 days, Frozen 30 days.
GENERAL INFORMATION
Testing Schedule Sun - Fri 
Expected TAT 1-3 Days  
CPT Code(s) 82533
Lab Section Chemistry