Test Overview
Test Methodology

Gas Chromatography / Mass Spectrometry (GC/MS)

Test Usage

Detection of therapeutic and abused drugs. This test is used primarily as a confirmation of a Preliminary Drug Screen, or ordered in combination with the Preliminary Screen as part of the Comprehensive Drug Screen.

Reference Range *

Negative

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily
Analytic Time

1 - 2 days

Soft Order Code
GCMS
MiChart Code
Gas Chromatography, Urine (GCMS)
Synonyms
  • Comprehensive Drug Analysis, Urine
  • Comprehensive Drug Screen, Urine
  • QUALG
  • PROPG
  • METHAQUALONE CONFIRM W/C.O.C.
  • PROPOXYPHENE CONFIRM W/C.O.C.
  • URINE DRUG SCREEN BY GAS CHROM
  • DIPHENHYDRAMINE
  • IBUPROFEN
  • LIDOCAINE
  • MEPERIDINE
  • MEPROBAMATE
  • METHADONE
  • PHENYLPROPANOLAMINE
  • PROPOXYPHENE
  • PSEUDOEPHEDRINE
  • METHAQUALONE
  • TRICYCLIC ANTIDEPRESSANTS
  • Urine Tox Screen
  • Urine Toxicology Screen
  • Toxicology Screen, Urine
  • Drug Confirmation by GC/MS, Urine
  • 2,5-dimethoxy-4-ethyl-phenethylamine
  • 2CE
  • 2C-E
  • GCMS
  • URINE DRUG SCREEN GC/MASS SPEC
  • DRUG COMP
  • Drug Screen by GC/MS, Urine
  • Tramadol
  • Citalopram
  • Sertraline / Zoloft
  • Fluoxetine / Prozac
Laboratory
Chemical Pathology
Section
Drug Analysis
Specimen Requirements
Collection Instructions

Collect random urine specimen. Refrigerate. Specify drug(s) to be confirmed. Note that Chain of Custody specimens cannot be collected at MLabs Blood Drawing sites.

Normal Volume
20 mL urine
Minimum Volume
10 mL urine
Additional Information

For questions regarding whether specific drugs are detectable contact MLabs or the UMHS Drug Analysis and Toxicology Laboratory.

Billing
CPT Code
80375
Fee Code
33253
Resources