Drug Screen without Confirmation
Drug Screen
Test Codes
EPIC: LAB1231004
Department
Chemistry
Instructions
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.
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:
Refrigerated (2-8°C or 36-46°F): 7 days
Laboratory
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
Performed
Sunday – Saturday, 24 hours a day.
STAT screen results available within 1 hour of receipt in the Laboratory.
Reference Range
Negative.
| Amphetamine Screen, Urine | cutoff = 500 ng/mL |
| Barbiturates Screen, Urine | cutoff = 200 ng/mL |
| Benzodiazepines Screen, Urine | cutoff = 200 ng/mL |
| Cannabinoid Screen, Urine | cutoff = 50 ng/mL |
| Cocaine Screen, Urine | cutoff = 300 ng/mL |
| Fentanyl Screen, Urine | cutoff = 1.0 ng/mL |
| Methadone Screen, Urine | cutoff = 300 ng/mL |
| Opiates Screen, Urine | cutoff = 300 ng/mL |
| Oxycodone Screen, Urine | cutoff = 100 ng/mL |
| Phencyclidine (PCP) Screen, Urine | cutoff = 25 ng/mL |
Test Methodology
Automated enzymatic immunoassay.
Interpretation
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/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.
CPT Codes
80307x8
Contacts
Livonia Laboratory – LVA
947-523-4370
Name: Livonia Laboratory – LVA
Location:
Phone: 947-523-4370
Chemistry Laboratory – RO
248-551-8068
Name: Chemistry Laboratory – RO
Location:
Phone: 248-551-8068
Lenox Laboratory – LNX
947-523-4070
Name: Lenox Laboratory – LNX
Location:
Phone: 947-523-4070
Chemistry Laboratory – TR
248-964-8070
Name: Chemistry Laboratory – TR
Location:
Phone: 248-964-8070
Chemistry Laboratory – DBN
313-436-2196
Name: Chemistry Laboratory – DBN
Location:
Phone: 313-436-2196
Chemistry Laboratory – TYL
313-295-5360
Name: Chemistry Laboratory – TYL
Location:
Phone: 313-295-5360
Chemistry Laboratory – TRN
734-671-3165
Name: Chemistry Laboratory – TRN
Location:
Phone: 734-671-3165
Chemistry Laboratory – FH
947-521-5252
Name: Chemistry Laboratory – FH
Location:
Phone: 947-521-5252
Chemistry Laboratory – GP
313-473-1807
Name: Chemistry Laboratory – GP
Location:
Phone: 313-473-1807
Main Laboratory –WYN
734-467-4274
Name: Main Laboratory –WYN
Location:
Phone: 734-467-4274
Canton Laboratory – CTN
734-454-8024
Name: Canton Laboratory – CTN
Location:
Phone: 734-454-8024
Toxicology Laboratory – RO
248-551-8058
Name: Toxicology Laboratory – RO
Location:
Phone: 248-551-8058
Last Updated
10/23/2024
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