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Lab Test Dictionary

Comprehensive Volatiles Panel, Blood (2423B)


Gas Chromatography/Mass Spectrometry (GC/MS); Headspace Gas Chromatography (GC)


DFE; Dymel 134a; Freon 152a; Genetron 134a; HFC-134a; Iso-Butanol; Iso-Butyl Alcohol; R134a; Suva 134a; norflurane; tetrafluoroethane

Specimen Type

Whole Blood

Performing Lab

NMS Labs

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

7 Days

Collection Information

Specimen Required

3.3-7 mL Whole Blood

Container Type

Gray (Potassium Oxalate)

Collection Instructions

Whole blood collected in an EDTA (lavender-top) tube is also acceptable.

Processing Information - Lab Use Only

Transport Temperature


Test Volume Required

7 mL Whole Blood

Minimum Test Volume

3.3 mL Whole Blood

Processing Instructions

Complete a NMS Labs requisition and submit with specimen refrigerated.

Included Tests

1,1,1,2-Tetrafluoroethane; 1,1-Difluoroethane, Ethane, Halocarbons, Isobutane, Methane, Propane, Volatiles and n-Butane

CPT Codes

84600 (x3), 82441