Drug Toxicology Marijuana, with Confirmation, Oral Fluid
Use
This assay detects the presence of marijuana (THC and/or its metabolites) in oral fluid. It is used for monitoring recent marijuana use, offering a less invasive alternative to urine testing and providing rapid detection in cases of suspected recent ingestion.
Special Instructions
Specimen must be collected using the Quantisal™ oral fluid collection device. Oral‑Eze® is no longer acceptable. Avoid food, drink, gum or tobacco for 10 minutes prior to collection; if mouth not empty, rinse with up to 4 oz water and wait 10 minutes before collection. Place swab under tongue until blue dye indicates sufficient volume in collection pad.
Limitations
Detection of marijuana in oral fluid reflects recent use but does not indicate dose or timing. Concentration in oral fluid cannot determine amount consumed or time since ingestion. A positive screening result triggers confirmatory testing at additional charge.
Methodology
Mass Spectrometry
Biomarkers
Result Turnaround Time
2-3 days
Related Documents
For more information, please review the documents below
Specimen
Saliva
Volume
1 mL oral fluid inserted into 3 mL buffer tube
Minimum Volume
Not provided
Container
Quantisal™ device
Collection Instructions
Avoid food/drink/gum/tobacco 10 minutes prior; rinse mouth with water if needed and wait 10 minutes; place swab under tongue until blue dye indicates saturation
Causes for Rejection
Non‑Quantisal collection device; food debris or foreign objects; multiple swabs; no swab; collection wand inverted in tube
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 10 days |
| Refrigerated | 30 days |
| Frozen | 30 days |