Test library
THC Drug Test
The Marijuana Cannabis Drug Test detects cannabis compounds in a sample to show recent use. Blood testing is most useful for very recent exposure, while other sample types provide longer detection windows.
Order Marijuana Cannabis (Weed) Drug Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Marijuana Cannabis (Weed) Drug Test- Typical turnaround
- 1-3 business days
- Starting price
- From $199
- Results
- Confidential, online
Quick answer
The Marijuana Cannabis Drug Test checks for cannabis compounds and their metabolites to show whether the substance has been used recently. Cannabis can be tested in blood, urine, saliva, or hair, and each sample type has a different detection window. It is used in workplace, legal, and personal settings, and results are interpreted by a qualified healthcare provider.
What this test measures
Cannabis contains compounds such as tetrahydrocannabinol, or THC, which the body breaks down into metabolites. Laboratories detect these substances using screening immunoassays and confirm presumptive findings with a more specific method. The choice of sample matters because each matrix captures a different window of exposure, from a few hours in blood to weeks or longer in other samples.
Blood testing is best suited to very recent use, since THC and its metabolites leave the bloodstream relatively quickly. Screening is performed against defined cutoffs, and a presumptive positive is normally confirmed using mass spectrometry. Detection depends on how much was used, how often, and individual metabolism, so results reflect exposure rather than impairment.
Testing may be requested for workplace programs, legal matters, or personal awareness. The test cannot determine when cannabis was used or how much, and it does not measure impairment. A qualified healthcare provider or the requesting program interprets results, and confirmatory testing is standard before a result is treated as final.
- Tetrahydrocannabinol (THC)
- 11-nor-9-carboxy-THC (THC-COOH)
- Cannabinol (CBN)
- Cannabidiol (CBD) when included
- THC screen (immunoassay)
- THC confirmation (mass spectrometry)
- Specimen validity indicators when applicable
Why people order this test
- Screen for recent cannabis exposure
- Support a workplace drug testing program
- Check for cannabis in a legal or court-related matter
- Personal testing for recent use
- Confirm a presumptive screening result
- Provide documentation requested by a program
How to prepare
No fasting is required for a cannabis drug test. Collection depends on the sample type: a blood draw from a vein, or a urine, saliva, or hair sample following the laboratory's instructions. Let the testing provider know about any medications you take.
Understanding your results
Results are typically available within one to three business days. A negative result means cannabis compounds were not detected above the cutoff, while a presumptive positive is confirmed with a more specific method. A qualified healthcare provider can explain the final report.
THC Drug Test by state
Alabama
THC Drug Test across Alabama.
Alaska
THC Drug Test across Alaska.
Arizona
THC Drug Test across Arizona.
Arkansas
THC Drug Test across Arkansas.
California
THC Drug Test across California.
Colorado
THC Drug Test across Colorado.
Connecticut
THC Drug Test across Connecticut.
Delaware
THC Drug Test across Delaware.
Florida
THC Drug Test across Florida.
Georgia
THC Drug Test across Georgia.
Hawaii
THC Drug Test across Hawaii.
Idaho
THC Drug Test across Idaho.
Related tests
12 Panel Drug Test (Drugs of Abuse Testing), Hair
Compare 12 Panel Drug Test (Drugs of Abuse Testing), Hair options and order online.
12 Panel Drug Testing
Compare 12 Panel Drug Testing options and order online.
7 Panel Drug Test (Drugs of Abuse Testing), Hair
Compare 7 Panel Drug Test (Drugs of Abuse Testing), Hair options and order online.
9 Panel Drug Test
Compare 9 Panel Drug Test options and order online.
9 Panel Drug Test (Drugs of Abuse Testing), Hair
Compare 9 Panel Drug Test (Drugs of Abuse Testing), Hair options and order online.
Frequently Asked Questions
What does the cannabis drug test detect?
It detects THC and its metabolites, the substances the body produces after cannabis use. The exact list depends on the panel ordered.
How long does cannabis stay detectable?
The window varies by sample type. Blood reflects very recent use, while urine can detect metabolites for days to weeks and hair for months. Use frequency and metabolism also matter.
Does a positive result mean I was impaired at the time?
No. A positive test shows that cannabis compounds were detected, not that a person was impaired when the sample was collected.
Do I need to fast?
No. Fasting is not required. Follow the collection instructions for the sample type ordered.
Are results confirmed before they are final?
Presumptive positive screens are normally confirmed with a more specific method, and the confirmed result is the one used for decision-making.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
Reviewed by the LabOrdering Editorial Team
Every page on this site is reviewed for clarity, sourcing, and accuracy. We update our library as testing options, collection networks, and accreditation standards change.