Lab Test

Drugs of Abuse Panel without Confirmation

Drug Screen

Test Codes





Please see  Minimum Pediatric Specimen Requirements, also known as the Pediatric Specimen Requirements Minimum.

Specimen Collection Criteria

Collect: A random urine specimen in a screw-capped container (preferred) or other sterile collection container. (Minimum: 10 mL for pediatric and adult patients).

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

Physician Office/Draw Specimen Preparation

Maintain specimen refrigerated (2-8°C or 36-46°F) prior to transport.

Preparation for Courier Transport

Transport: Urine, refrigerated (2-8°C or 36-46°F). (Minimum: 10 mL for pediatric and adult patients)

Rejection Criteria

  • Specimens not collected and processed as indicated.
  • 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

Analyze specimen immediately upon receipt in the Laboratory.


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:

Refrigerated (2-8°C or 36-46°F): 7 days


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


Sunday – Saturday, 24 hours a day.
STAT screen results available within 1 hour of receipt in the Laboratory.

Reference Range


Amphetamine Screen, Urinecutoff = 500 ng/mL
Barbiturates Screen, Urinecutoff = 200 ng/mL
Benzodiazepines Screen, Urinecutoff = 200 ng/mL
Cannabinoid Screen, Urinecutoff = 50 ng/mL
Cocaine Screen, Urinecutoff = 300 ng/mL
Fentanyl Screen, Urinecutoff = 1.0 ng/mL
Methadone Screen, Urinecutoff = 300 ng/mL
Opiates Screen, Urinecutoff = 300 ng/mL
Oxycodone Screen, Urinecutoff = 100 ng/mL
Phencyclidine (PCP) Screen, Urinecutoff = 25 ng/mL

Test Methodology

Automated enzymatic immunoassay.


Drugs detected by the immunoassay screening procedures represent tentative findings and will be reported as "Unconfirmed positive."

Confirmation testing by mass spectrometry methods must be ordered separately, either with the initial drug screening order or within 7 days of sample collection.  NOTE: GC/MS analysis component of the Comprehensive Drug Analysis (EPIC LAB7162, CMPD2) does not replace confirmation testing for these drug classes:

Amphetamine/MethamphetaminesBarbituratesBenzodiazepinesCannabinoidCocaineFentanylMethadoneOpiatesOxycodonePhencyclidine (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.

CPT Codes



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