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Cortisol, A.M.
Test Code4212
CPT Codes
82533
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Instructions
Collect specimen between 7-9 a.m. Indicate the collection time on the specimen container and test requisition.
Collect 1 mL serum from a red-top (no gel) tube or serum separator tube; place in sterile plastic screw-capped vial(s).
Note: Assay is not recommended when patient is receiving prednisone/prednisolone therapy due to cross reactivity with the antibody used in this assay
Collect 1 mL serum from a red-top (no gel) tube or serum separator tube; place in sterile plastic screw-capped vial(s).
Note: Assay is not recommended when patient is receiving prednisone/prednisolone therapy due to cross reactivity with the antibody used in this assay
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: Next day
Clinical Significance
Cortisol is increased in Cushing's Disease and decreased in Addison's Disease (adrenal insufficiency).
Performing Laboratory
Quest Diagnostics Nichols Institute Chantilly
14225 Newbrook Dr
Chantilly, VA 20153
Last Updated: November 6, 2024
