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HelpTest Code DEXAMETH Dexamethasone
Additional Codes
Sunrise Clinical Manager (SCM) Orderable: Dexamethasone Level
AllScripts (AEHR) Orderable: Dexamethasone Level
Performing Laboratory
Quest Diagnsotics Nichols Insititute
Methodology
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
80299
Useful For
Test used in the differential diagnosis of Cushing's syndrome.
Computer Interface Code
PDM # 5960035