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HelpTest Code LDPU Limited Drug Profile, 3 Drug Classes, Immunoassay, Random, Urine
Ordering Guidance
The test does not screen for drug classes other than those listed in Testing Algorithm.
Specimen Required
Only orderable as part of profile. For more information see CSMHU / Controlled Substance Monitoring Hybrid Drug Panel, 20 Drug Classes, High-Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine.
Supplies: Urine Tubes, 10 mL (T068)
Collection Container/Tube: Plastic urine container
Submission Container/Tube: Plastic, 10 mL tube
Specimen Volume: 5 mL
Collection Instructions:
1. Collect a random urine specimen.
2. Submit 5 mL in 10 plastic tube.
3. No preservative
Useful For
Detecting drug use involving barbiturates, cocaine, and carboxy-tetrahydrocannabinol
This test is not intended for use in employment-related testing.
Testing Algorithm
Testing begins with screening tests for drugs of abuse including barbiturates, cocaine, and tetrahydrocannabinol.
Positive results can be confirmed and quantitated by definitive methods, gas chromatography mass spectrometry for barbiturates, cocaine and metabolites and liquid chromatography tandem mass spectrometry for tetrahydrocannabinol metabolites, at an additional charge.
Method Name
Only orderable as part of profile. For more information see CSMHU / Controlled Substance Monitoring Hybrid Drug Panel, 20 Drug Classes, High-Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine.
Immunoassay
Reporting Name
Limited Drug Panel, 3, IA, USpecimen Type
UrineSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 14 days | |
| Frozen | 14 days | ||
| Ambient | 72 hours |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Clinical Information
This test uses the simple screening technique that involves immunoassay testing for drugs by class. All positive immunoassay screening results can be confirmed by gas chromatography mass spectrometry or liquid chromatography tandem mass spectrometry and quantitated if applicable.
This assay was designed to test for the following:
-Barbiturates
-Cocaine
-Carboxy-tetrahydrocannabinol
Reference Values
Only orderable as part of profile. For more information see CSMHU / Controlled Substance Monitoring Hybrid Drug Panel, 20 Drug Classes, High-Resolution Mass Spectrometry and Immunoassay Screen, Random, Urine.
Negative
Screening cutoff concentrations:
Barbiturates: 200 ng/mL
Cocaine (benzoylecgonine-cocaine metabolite): 150 ng/mL
Tetrahydrocannabinol carboxylic acid: 50 ng/mL
This report is intended for use in clinical monitoring or management of patients. It is not intended for use in employment-related testing.
Interpretation
For information about drug testing, including estimated detection times, see Drug Class Testing on MayoClinicLabs.com.
Cautions
No significant cautionary statements
Day(s) Performed
Monday through Saturday
Report Available
Same day/1 to 2 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
80307
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| LDPU | Limited Drug Panel, 3, IA, U | 69739-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 615289 | Barbiturates | 19270-8 |
| 615290 | Cocaine | 19359-9 |
| 615291 | Tetrahydrocannabinol | 19415-9 |