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Comprehensive Drug Analysis

Drug Screen, Urine Drug Screen, Comprehensive Urine Screen, GCMS

Test Codes

EPIC: LAB7162, CMPD2
Emergency Center and Inpatient Orders Only

Department

Chemistry

Instructions

This panel includes urine screening for:
Amphetamine/Methamphetamines, Barbiturates, Benzodiazepines, Cannabinoid, Cocaine, Fentanyl, Methadone, Opiates, Oxycodone, Phencyclidine (PCP), and a GC/MS analysis for common illicit drugs and other prescription and over-the-counter medications (e.g., non-narcotic analgesics, anti-epileptics, antidepressants, anti-psychotics).  Drugs not present in the mass spectral library will not be detected.  This GC/MS analysis does not replace confirmation testing, which can be ordered separately.

Specimen Collection Criteria

Collect: Urine: 50 mL random urine in a screw-capped container (preferred) or other sterile collection cup. (Minimum: 30 mL for adults, 20 mL for pediatrics)

Refrigerate the urine specimen immediately after collection.
Record the exact time of specimen collection on the container or in the computer system.

Preparation for Courier Transport

Transport: 50 mL urine, refrigerated (2-8°C or 36-46°F). (Minimum: 30 mL)

Rejection Criteria

Urine Vacutainer^® tubes. Urine received in a glass or plastic tube with a rubber stopper may contain insufficient sample volume, preclude confirmatory testing, and give rise to contaminants and artifacts. 

In-Lab Processing

Deliver immediately to the appropriate testing station. Analyze immediately upon receipt in the Laboratory.

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 72 hours
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): 3 months

Specimen Storage in Department Prior to Disposal:

Frozen (-20°C/-4°F or below): 1 month

Laboratory

IMMUNOASSAY DRUG SCREENS:
Canton Laboratory
Dearborn Chemistry Laboratory
Farmington Hills Chemistry Laboratory
Grosse Pointe Chemistry Laboratory
Lenox Main Laboratory
Livonia Main Laboratory
Royal Oak Automated Chemistry Laboratory
Taylor Chemistry Laboratory
Trenton Chemistry Laboratory
Troy Chemistry Laboratory
Wayne Chemistry Laboratory

GC/MS ANALYSIS:
Royal Oak Toxicology Laboratory

Performed

Sunday – Saturday, 24 hours a day.
STAT results available within 4 hours of receipt in the Laboratory.

Reference Range

No drugs detected.

Test Methodology

Immunoassay, Gas Liquid Chromatography/Mass Spectrometry (GC/MS).

This test was developed and its performance characteristics determined by Beaumont Health. It has not been cleared or approved by the FDA. The Laboratory is regulated under CLIA as qualified to perform high-complexity testing. This test is used for clinical purposes and should not be regarded as investigational or for research.

Interpretation

Drugs detected by the immunoassay screening procedures represent tentative findings and will be reported as "Unconfirmed positive." Drugs identified by GC/MS will be reported as "Confirmed positive."

Additional confirmatory testing can be ordered separately.

Amphetamine/Methamphetamines, Barbiturates, Benzodiazepines, Cannabinoid, Cocaine, Fentanyl, Methadone, Opiates, Oxycodone, Phencyclidine (PCP)

The laboratory will no longer automatically perform confirmation testing on positive THC screen in patients 21 years of age or older. If a confirmation is needed, please call the lab to add the test on to the original specimen.

Clinical Utility

The immunoassay screening for drugs of abuse in urine provides rapid results for medical purposes.  Confirmation of these screening results can be ordered separately.  The GC/MS analysis is a broad-based gas chromatographic / mass spectrometry (GC/MS) method for identification of common illicit, over-the-counter, and prescription drugs.  Drugs which cannot be gas chromatographed or are not present in the mass spectral library will not be detected.  A mass spectrum does not distinguish between isomeric forms.  The identity of structural, geometric, and stereoisomers must be achieved by additional means.  Note that this GC/MS analysis does not replace confirmation testing.

CPT Codes

80307x8, 82542

Contacts

Last Updated

1/31/2023