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Test Code DEXAM DEXAMETHASONE SUPPRESSION TEST, BLOOD

Additional Codes

Software Test Code
SoftID DEXAM
EPIC LAB10226

Performing Laboratory

NorDx Laboratories

Useful For

Diagnosing Cushing’s Syndrome or depression due to neuroendocrine disorders

Method Name

Electrochemiluminescent Immunoassay (ECLIA)

Reference Values

< 5 µg/dL Cortisol

Days and Times Test Performed

Monday through Sunday

Report Available

1 Day

Profile Information

Individual Test Description

CORTISOL, POST DEXAMETHASONE

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

1.0 mL

Specimen Collection and Handling

1. At around 8:00 am collect blood in either a plain, red-top or Serum Separator Tube.
2. Spin down, separate from clot and send refrigerated.
3. Dexamethasone 1 mg (20µg/kg) orally at 11:00pm (night prior to blood drawing).
4. Patients should not be on steroid medication.
5. Date and time drawn must be indicated on the requisition.

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer

82533 Cortisol, Total, Quantitative