Skip Ribbon Commands
Skip to main content
Sign In
Navigate Up

22345 Barbiturates, Urine

Barbiturates, Urine
Test Code: BAR
Synonyms/Keywords
Amobarbital, Amytal, Phenobarbital, Luminal, Nembutal, Pentobarbital. Secobarbital, Seconal, Solfoton , Phenobarbital, Butalbital, Fiorinal​
Useful For
Detecting exposure to barbiturates to monitor compliance in taking prescribed medications or to detect abuse​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Urine​ Sage urine collection container​ Sterile plastic container with no preservatives​ 5 mL​ 3 mL​ 1.5 mL​
Specimen Stability Information
Specimen Type Temperature Time
Urine​ Ambient​ 72 hours​
Refrigerate (Preferred)​ 30 days​
Frozen​ 30 days​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​
If no confirmatory work is required: 1 day​
 
If confirmatory work is required: 4 days
 Beckman AU680 Clinical Chemistry System with Emit Immunoassay and Gas Chromatography-Mass Spectrometry (GCMS) using Selected Ion Monitoring (if needed for confirmation)​
Test Information
This test was developed and its performance characteristics determined by Marshfield Labs. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) to perform high complexity testing.​
 
This test is a screen for the Barbiturates drug group by immunoassay; if the screen is positive, this test automatically includes GCMS confirmation for the barbiturates drug group.  Quantitation/confirmation charged separately if needed.  It is intended for use only in patients where an initial drug screening test has not already been performed (i.e. Point-of-Care drug screening cup, dipstick, etc.).  The test will detect the presence of butalbital, amobarbital, pentobarbital, secobarbital and phenobarbital.
 
The Barbiturates drug group are central nervous system depressants (sedative or hypnotic).  Barbiturates are generally abused as downers to induce sleep.
Reference Range Information
Performing Location Reference Range
Marshfield​

Negative.  Positives are reported with a quantitative GCMS result

Interpretation

​Current Cutoff Levels for Toxicology

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
80307​ ​ 1​ Single drug class​ ​
80345 ​ 1​ ​Barbiturate Confirmation by GCMS If needed
​G0480 ​ ​1 ​Barbiturate Confirmation by GCMS For Medicare/Medicaid, If needed
Classification
This test was developed and its performance characteristics determined by Marshfield Labs. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) to perform high complexity testing.
​
Synonyms/Keywords
Amobarbital, Amytal, Phenobarbital, Luminal, Nembutal, Pentobarbital. Secobarbital, Seconal, Solfoton , Phenobarbital, Butalbital, Fiorinal​
Ordering Applications
Ordering Application Description
​Centricity ​Barbiturate Screen
​Cerner ​Barbiturate Screen Urine
​COM ​Barbiturate, Urine
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Urine​ Sage urine collection container​ Sterile plastic container with no preservatives​ 5 mL​ 3 mL​ 1.5 mL​
Specimen Stability Information
Specimen Type Temperature Time
Urine​ Ambient​ 72 hours​
Refrigerate (Preferred)​ 30 days​
Frozen​ 30 days​
Useful For
Detecting exposure to barbiturates to monitor compliance in taking prescribed medications or to detect abuse​
Reference Range Information
Performing Location Reference Range
Marshfield​

Negative.  Positives are reported with a quantitative GCMS result

Interpretation

​Current Cutoff Levels for Toxicology

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​
If no confirmatory work is required: 1 day​
 
If confirmatory work is required: 4 days
 Beckman AU680 Clinical Chemistry System with Emit Immunoassay and Gas Chromatography-Mass Spectrometry (GCMS) using Selected Ion Monitoring (if needed for confirmation)​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
80307​ ​ 1​ Single drug class​ ​
80345 ​ 1​ ​Barbiturate Confirmation by GCMS If needed
​G0480 ​ ​1 ​Barbiturate Confirmation by GCMS For Medicare/Medicaid, If needed
Classification
This test was developed and its performance characteristics determined by Marshfield Labs. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) to perform high complexity testing.
​
For most current information refer to the Marshfield Laboratory online reference manual.