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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Cortisol, Total
Test CodeCORT
Quest Code
367
CPT Codes
82533
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Instructions
Note: Assay not recommended when patient is receiving prednisone/prednisolone therapy due to cross reactivity with the antibody used in this assay.
Transport Container
Serum separator tube (SST)
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
Day shift Mon-fri
Report Available
1 day
Reference Range
| 0-3 Days (infants) | |
| Premature (31-35 Weeks) | a.m. or p.m. ≤15.0 mcg/dL |
| Term | a.m. or p.m. ≤14.0 mcg/dL |
| 4 Days-1 Month | a.m. or p.m. Not established |
| 2-11 Months | a.m. 3.0-23.0 mcg/dL p.m. Not established |
| 1-17 Years | a.m. 3.0-25.0 mcg/dL p.m. 3.0-17.0 mcg/dL |
| Adult 8 a.m. (7-9 a.m.) specimen | 4.0-22.0 mcg/dL |
| Adult 4 p.m. (3-5 p.m.) specimen | 3.0-17.0 mcg/dL |
Clinical Significance
Cortisol is increased in Cushing's Disease and decreased in Addison's Disease (adrenal insufficiency).
Performing Laboratory
| Quest Diagnostics LLC |
| 200 Forest Street, 3rd Floor, Suite B |
| Marlborough, MA 01752-3023 |
