Drugs of Abuse - Oral Fluid Testing
GAIN THE CONFIDENCE AND CONVENIENCE FROM
ORAL FLUID DRUG TESTING.

Organizations that require convenient, gender-neutral collection and lab-accurate results frequently prefer RTL oral fluid test options. RTL's oral fluid lab-based tests unobtrusively detect recent drug abuse, and protect you from exposure to the specimen. Choose from a wide selection of cost-effective solutions, covering many commonly abused drugs. With RTL's oral fluid test, you can find out fast.
Oral fluid lab based testing is ideal for a variety of industries, particularly in criminal justice and addiction treatment situations where recent use detection and ease of use are vital.
- Highly customizable test panel options covering a range of licit and illicit drugs
- Non-invasive, gender-neutral collections with no exposure to specimen
- Better recent-use indicator than urine
- Protection against sample adulteration and tampering
- Collection device provides better
THC recovery and stability; volume indicator guarantees sufficient collections (99% accuracy1) - Fast turn-around time from receipt
of specimen (48 hours2 negative, 72 hours positive)
» Download datasheet [PDF]
RTL's testing procedures are scientifically accepted and approved by the U.S. Department of Health and Human Services (CMS/CLIA). The lab utilizes the most sophisticated, sensitive and specific equipment and technology available, (GC/MS - gas chromatography/mass spectrometry) to confirm and quantitate drugs in oral fluid.
View service documentation online or download Adobe PDF files to ensure you have what you need to conduct effective drug tests.
Documents
» DRUGS OF ABUSE - ORAL FLUID TESTING: DATASHEET [PDF]
» DRUGS OF ABUSE - ORAL FLUID TESTING: FAQ [PDF]
Cutoff Levels
» SCREENING CUTOFF LEVELS
SALIVA SCREENING METHODOLOGY
Specimens collected with the oral fluid collection device are sent to Redwood Toxicology Laboratory for screening by Enzyme Immunoassay (EIA).
| SCREENING CUTOFF LEVELS BY EIA cutoff levels updated periodically. | |||||
| Drugs of Abuse | EIA Cutoff | ||||
| Amphetamine |
50 ng/mL | ||||
| Barbiturates | 50 ng/mL | ||||
| Benzodiazepines | 20 ng/mL | ||||
| Cocaine Metabolite (Benzoylecgonine) | 20 ng/mL | ||||
| Methadone | 50 ng/mL | ||||
| Methamphetamine | 50 ng/mL | ||||
| Opiates (hydrocodone, hydromorphone, oxycodone, 6-monoacetylmorphine)) | 40 ng/mL | ||||
| Phencyclidine | 10 ng/mL | ||||
| THC (cannabinoids) | 4 ng/mL | ||||
ORAL FLUID DRUG TEST CONFIRMATION METHODOLOGY
Positive screens are confirmed by gas chromatography/mass spectrometry (GC/MS).
| CONFIRMATION CUTOFF LEVELS BY GC/MS cutoff levels updated periodically. | |||||
| Drugs of Abuse | GC/MS cutoff | ||||
| Amphetamine |
15 ng/mL | ||||
| Barbiturates | 20 ng/mL | ||||
| Benzodiazepines | 15 ng/mL | ||||
| Cocaine Metabolite (Benzoylecgonine) | 8 ng/mL | ||||
| Methadone | 10 ng/mL | ||||
| Methamphetamine | 15 ng/mL | ||||
| Opiates - Codeine, hydrocodone, Hydromorphone, Morphine, Oxycodone - 6-monoacetylmorphine |
20 ng/mL 4 ng/mL |
||||
| Phencyclidine | 5 ng/mL | ||||
| THC (cannabinoids) | 1 ng/mL | ||||
Additional Information & Resources
» ORAL FLUID COLLECTION PROTOCOL
» ORAL FLUID SPECIMEN LABELING
» LAB TECHNOLOGY AND EQUIPMENT
» LAB TEST SUPPLIES
If you would like to place an order, check prices or inquire about test features — please call 1-800-255-2159. You can also complete the online form below. All requests made during non-business hours will be responded to as early as possible the next business day.
1. Moore C, Rana S, Coulter C, Day D, Vincent M, Soares J. Detection of conjugated 11-nor-
Delta9-tetrahydrocannabinol-9-carboxylic acid in oral fluid. J Anal Toxicol 2007;31:187-194.
2. Excludes specimens received Saturday.
3. Positive on methadone panels are confirmed by GC/MS upon request.








