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26305 Dexamethasone, Serum (500118)

Dexamethasone, Serum (500118)
Test Code: MISC
Synonyms/Keywords

​Dexamethasone, Mass Spectromety

Specimen Requirements
Specimen TypePreferred Container/TubeAcceptable Container/TubeSpecimen Volume

Specimen Minimum Volume

Pediatric Minimum Volume
​Serum​Red Top Tube (RTT)Serum Separator Tube (SST), EDTA Lavender Top Tube (LTT), Green Top (heparin) Tube (GTT), Plasma Separator Tube (PST)​​3 mL​1 mL​1 mL
Collection Processing Instructions

​Separate serum or plasma from cells within one hour of collection. Transfer into a plastic transport tube and freeze.  Transport frozen on dry ice. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested. 

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
LabCorp forwards to Esoterix​​Testing schedule varies​7 to 13 days​Mass Spectrometry (MS)
Reference Lab
LabCorp of America
Reference Range Information
Performing Location​AdultReference Range
LabCorp forwards to Esoterix ​ ​​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
80299​​​​
Synonyms/Keywords

​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)Serum Separator Tube (SST), EDTA Lavender Top Tube (LTT), Green Top (heparin) Tube (GTT), Plasma Separator Tube (PST)​​3 mL​1 mL​1 mL
Collection Processing

​Separate serum or plasma from cells within one hour of collection. Transfer into a plastic transport tube and freeze.  Transport frozen on dry ice. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested. 

Specimen Stability Information
Specimen TypeTemperatureTime
​Serum ​ ​​Frozen​ 1 year
​Refrigerated​14 days
​Ambient​ 6 days
Reference Range Information
Performing Location​AdultReference Range
LabCorp forwards to Esoterix ​ ​​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
LabCorp forwards to Esoterix​​Testing schedule varies​7 to 13 days​Mass Spectrometry (MS)
Reference Lab
LabCorp of America
For billing questions, see Contacts
Outreach CPTs
CPTModifier
(if needed)		QuantityDescriptionComments
80299​​​​
For most current information refer to the Marshfield Laboratory online reference manual.