Skip Ribbon Commands
Skip to main content
Sign In

26305 Dexamethasone, Serum (500140)

Dexamethasone, Serum (500140)
Test Code: MISC
Synonyms/Keywords

​Ref Lab Code: 500140, Dexamethasone, Mass Spectromety

Specimen Requirements
Specimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen Volume

Specimen Minimum Volume

Pediatric Minimum Volume
​Serum​Red Top Tube (RTT)​3 mL​1 mL​1 mL
Collection Processing Instructions

​Separate serum within one hour; transfer into a plastic transport tube.  Transport frozen on dry ice.

Specimen Stability Information
Specimen TypeTemperatureTime
​Serum ​ ​​Frozen​ 1 year
​Refrigerated​14 days
​Ambient​ 6 days
Performing Laboratory Information
Performing LocationDay(s) Test PerformedAnalytical TimeMethodology/Instrumentation
Esoterix Endocrinology Lab​​Testing schedule varies​5 - 11 days​High-pressure liquid chromatography/tandem mass spectrometry (HPLC/MS-MS)
Reference Range Information
Performing Location​AdultReference Range
Esoterix Endocrinology Lab​ ​ ​​Baseline​< 30
​8:00 AM, Following 1 mg Dexamethasone, Previous Evening​140 - 295
​8:00 AM, Following 8 mg Dexamethasone, (4 x 2 mg Doses) Previous Day​1600 - 2850
Outreach CPTs
CPTModifier
(if needed)
QuantityDescriptionComments
​80375
Synonyms/Keywords

​Ref Lab Code: 500140, Dexamethasone, Mass Spectromety

Ordering Applications
Ordering ApplicationDescription
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen Volume

Specimen Minimum Volume

Pediatric Minimum Volume
​Serum​Red Top Tube (RTT)​3 mL​1 mL​1 mL
Collection Processing

​Separate serum within one hour; transfer into a plastic transport tube.  Transport frozen on dry ice.

Specimen Stability Information
Specimen TypeTemperatureTime
​Serum ​ ​​Frozen​ 1 year
​Refrigerated​14 days
​Ambient​ 6 days
Reference Range Information
Performing Location​AdultReference Range
Esoterix Endocrinology Lab​ ​ ​​Baseline​< 30
​8:00 AM, Following 1 mg Dexamethasone, Previous Evening​140 - 295
​8:00 AM, Following 8 mg Dexamethasone, (4 x 2 mg Doses) Previous Day​1600 - 2850
For more information visit:
Performing Laboratory Information
Performing LocationDay(s) Test PerformedAnalytical TimeMethodology/Instrumentation
Esoterix Endocrinology Lab​​Testing schedule varies​5 - 11 days​High-pressure liquid chromatography/tandem mass spectrometry (HPLC/MS-MS)
For billing questions, see Contacts
Outreach CPTs
CPTModifier
(if needed)
QuantityDescriptionComments
​80375
For most current information refer to the Marshfield Laboratory online reference manual.