Barbiturate Screen, Urine
Urine Barbiturate Screen, BARB9, Drug Screen
Test Codes
EPIC: LAB1230974
Department
Chemistry
Specimen Collection Criteria
Collect: 50.0 mL random urine in a screw-capped container (preferred) or other sterile collection cup. (Minimum: 30 mL)
- 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: 50.0 mL urine, refrigerated (2-8°C or 36-46°F). (Minimum: 30.0 mL)
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 urine specimen immediately upon receipt in the Laboratory.
Storage
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 2 hours
Refrigerated (2-8°C or 36-46°F): 24 hours
Frozen (-20°C/-4°F or below): 3 months
Specimen Storage in Department Prior to Disposal:
Refrigerated (2-8°C or 36-46°F): 3 days
Laboratory
Canton Laboratory
Dearborn Chemistry Laboratory
Farmington Hills Chemistry Laboratory
Grosse Pointe Chemistry Laboratory
Lenox Laboratory
Livonia Laboratory
Royal Oak Chemistry Laboratory
Troy Chemistry Laboratory
Taylor Chemistry Laboratory
Trenton Chemistry Laboratory
Wayne Chemistry Laboratory
Performed
Sunday – Saturday, 24 hours a day.
STAT screen results available within 1 hour of receipt in the Laboratory
Routine results available within 24 hours.
Test Methodology
Enzyme Immunoassay.
Interpretation
Concentrations of drugs and/or metabolite(s) detected in urine have not been correlated to drug levels in the bloodstream or with the degree of impairment. The presence of a drug and/or metabolite(s) in urine is only an indication of previous drug exposure.
Clinical Utility
Barbiturates are central nervous system depressants. They are used therapeutically as sedatives, hypnotics, and anticonvulsants. The legal availability of barbiturates has declined but they remain frequently abused sedatives or hypnotic drugs. The most commonly abused barbiturates are the short-acting compounds such as secobarbital, pentobarbital and amobarbital. Tolerance to these drugs can develop from chronic use and death may occur from overdose.
CPT Codes
80307
Contacts
Canton Laboratory – CTN
734-454-8024
Name: Canton Laboratory – CTN
Location:
Phone: 734-454-8024
Chemistry Laboratory – DBN
313-436-2196
Name: Chemistry Laboratory – DBN
Location:
Phone: 313-436-2196
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
Lenox Laboratory – LNX
947-523-4070
Name: Lenox Laboratory – LNX
Location:
Phone: 947-523-4070
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
Chemistry Laboratory – TR
248-964-8070
Name: Chemistry Laboratory – TR
Location:
Phone: 248-964-8070
Chemistry Laboratory – TRN
734-671-3165
Name: Chemistry Laboratory – TRN
Location:
Phone: 734-671-3165
Chemistry Laboratory – TYL
313-295-5360
Name: Chemistry Laboratory – TYL
Location:
Phone: 313-295-5360
Wayne Main Laboratory
734-467-4274
Name: Wayne Main Laboratory
Location:
Phone: 734-467-4274
Last Updated
2/19/2025
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