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Cortisol, Random
Test CodeLAB61
CPT Codes
82533
Instructions
Order LAB2324 (AM Cortisol)- Collection time 7am- 9am
Order LAB2325 (PM Cortisol)- Collection time 3pm- 5pm
Order LAB61 (Cortisol, random) if sample was collected outside this defined time.
Routine venipuncture Collect one 4.5 ml Light green top (heparin) tube or one 5ml Red/gold top serum separator tube
Order LAB2325 (PM Cortisol)- Collection time 3pm- 5pm
Order LAB61 (Cortisol, random) if sample was collected outside this defined time.
Routine venipuncture Collect one 4.5 ml Light green top (heparin) tube or one 5ml Red/gold top serum separator tube
Specimen Stability
Centrifuge specimen within 2 hours of collection.
Specimen should be tested ASAP or refrigerated if not tested ASAP.
Specimen is stable refrigerated up to 72 hours after centrifugation.
Specimen should be tested ASAP or refrigerated if not tested ASAP.
Specimen is stable refrigerated up to 72 hours after centrifugation.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Failure to follow proper collection or storage procedure
Methodology
Competitive immunoassay:The amount of HRP conjugate bound is indirectly proportional to the concentration of cortisol present.
Setup Schedule
Daily
Report Available
Within 24 hours
Reference Range
None established
Clinical Significance
Cortisol is increased in Cushing disease and decreased in Addison disease (adrenal insufficiency).
