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Test Code DEXAMETH Dexamethasone

Additional Codes

Sunrise Clinical Manager (SCM) Orderable:   Dexamethasone Level

AllScripts (AEHR) Orderable:  Dexamethasone Level

Performing Laboratory

Quest Diagnsotics Nichols Insititute


Liquid Chromatography/Tandem Mass Spectrimetry (LC/MS/MS)


Specimen Required

Container/Tube:  Red Top Tub (gel not acceptable)

Specimen: 0.85 mL serum ( 0.6 mL min)

Transport Temperature: Refrigerated


Note: Draw specimen between 8:00 and 10:00 am

Reference Values

Baseline: Less than 20 ng/dL

1mg dexamethasone overnight: 180 - 550 ng/dL (8:00 - 10:00am)

Test Classification and CPT Coding


Useful For

Test used in the differential diagnosis of Cushing's syndrome.

Computer Interface Code

PDM # 5960035