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Test Code DXMTHS Dexamethasone, LC-MS/MS

Important Note

Provider must specify instructions if this test is included in a Dexamethasone Suppression Test

Additional Codes

2003248

Specimen Type

Blood

Preferred Collection Container

SST

Collection Instructions

Separate serum or plasma from cells ASAP or within 2 hours of collection.

Collection Volume

2.0 mL

Minimum Collection Volume

1.0 mL

Testing Volume

0.5 mL

Rejection Criteria

None listed

Specimen Storage and Stability

Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 6 months

Day(s) and Time(s) Performed

Wednesday, Saturday

EPIC Code

LAB1895

Methodology

Liquid Chromatography-Tandem Mass Spectrometry

Acceptable Collection Container

LAV (EDTA)

PINK

PST

Patient Preparation

Specimen should be collected between 8-10 a.m. or according to ordering provider instructions

Transport

Refrigerated

STAT Availability

No

Turn Around Time

3-6 days

Lab Department

Referred Testing

LOINC

14062-4

CPT

80299