Specimen: 2 mL (1 mL min.) Serum from 1 SST. Diurnal variation present; take specimen between 7-11 am. Specify time and date on sample container and test request form. Ship refrigerated or frozen.
Stability (Room): 8 hrs
Stability (Refrigerated): 48 hrs
Stability (Frozen): 2 weeks
Comment: Also see CORTISOL, STIMULATION BY ACTH; CORTISOL SUPPRESSION BY DEXAMETHASONE.
Price: Contact Medilab
Turnaround time (TAT): 5 – 15 days
Usage: Total cortisol concentrations are decreased in Addison’s disease and increased in Cushing’s disease and in other conditions of glucocorticoid excess.
Disease: Disorders of Adrenal Gland
Home Collection: Available
Pre-test Information: Sample must be drawn between 7-11 am.