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Cortisol, A.M.
Cortisol, A.M.
 
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Description
 

Cortisol, A.M.

Test Code

4212

CPT Code(s)

82533

Clinical Significance

Cortisol is increased in Cushing's Disease and decreased in Addison's Disease (adrenal insufficiency).

Patient Preparation

Assay is not recommended when patient is receiving prednisone/prednisolone therapy due to cross reactivity with the antibody used in this assay

Preferred Specimen(s)

1 mL serum

Minimum Volume

0.5 mL

Collection Instructions

Collect specimen between 7-9 a.m. Indicate the collection time on the specimen container and test requisition.

Transport Container

Serum Separator Tube (SST®)

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 28 days

Methodology

Immunoassay (IA)

Performing Laboratory

Quest Diagnostics - West Region

Setup Schedule

Set up: Tues-Sat (Day shift, cutoff 9 a.m.); Report available: 3 days

Reference Range(s)

0-3 Days (infants)
Premature (31-35 Weeks)≤15.0µg/dL
Term≤14.0µg/dL
4 Days-1 MonthNot established
2-11 Months 8 a.m. (7-9 a.m.) specimen3.0-23.0µg/dL
1-17 Years 8 a.m. (7-9 a.m.) specimen3.0-25.0µg/dL
>17 Years 8 a.m. (7-9 a.m.) specimen4.0-22.0 µg/dL


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