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Marijuana Detection Timelines (INFOGRAPHIC)

An Illustrated Timeline

In this marijuana infographic we present marijuana detection times in urine, hair, saliva and blood tests. All your questions and personal experiences are welcomed at the end.

Drug Name: Marijuana / Cannabis
Drug Class: Hallucinogen
Street Names: Pot, Dope, Weed

Marijuana Detection Timelines (INFOGRAPHIC)

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The Detection of Cannabis

Cannabis drug testing includes various different methodologies to determine whether a person has been using marijuana, or not. Cannabis use is highly detectable in urinalysis, hair analysis, as well as saliva tests for days or weeks. What are some factors that influence the detection time of weed?

Detection time depends strongly on a few factors, such as:

  • The kind of test used.
  • The sensitivity of the test itself.
  • A user’s frequency, dosage, last time of use.
  • Your individual genetic makeup.

Other Factors

Other factors that influence the detection window for marijuana include your:

  • Age
  • Body mass
  • Food intake / hydration
  • Gender
  • Liver function
  • Metabolic rate
  • Sosage / amount taken
  • Frequency of administration

Marijuana Test Detection

How long does marijuana stay in your system? Generally, weed can be detected for around a month after last use…but longer if you’re a chronic or high dose users. Here’s how the detection window breaks down by type of test:

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Urine: A urine drug test for marijuana will detect marijuana for 3 – 30 days.
Hair: Hair tests are more likely to detect regular than occasional marijuana use. Marijuana is visible for 90 days on a hair test.
Saliva: The sensitivity of saliva tests is not well established in the case of marijuana. But, in most cases, marijuana is only detected for 1 day on a saliva tests.
Blood: Blood tests are a better detector of recent cannabis use, since they measure the active presence of THC in the system between 3 days and 2 weeks.

NOTE HERE: Drug detection times in urine, blood, and saliva are an average and can vary greatly by individual. The information in this infographic should be used as a general guideline only.

Your Questions

Still have questions on drug testing and detection time for different drugs? Download our free e-book here.

If you have any further questions about detection times of marijuana, in particular, please feel free to post them in the comments section below. We try to answer all of our readers legitimate inquiries with a personal and prompt response. We want to hear from you!

Reference sources: CDC: Urine Testing for Detection of Marijuana: An Advisory
NCBI: Chemistry, Metabolism, and Toxicology of Cannabis: Clinical Implications
NCBI: Detection times of marijuana metabolites in urine by immunoassay and GC-MS.

Leave a Reply

3 Responses to “Marijuana Detection Timelines (INFOGRAPHIC)
Chris
2:54 pm June 11th, 2018

I can’t see the whole infographic. Have not had this problem before. Thanks.

Lydia @ Addiction Blog
11:02 am June 12th, 2018

Hi Chris. Thank you for reporting the problem. We fixed it, now you can see the whole infographic.

von
6:17 am June 12th, 2018

I was at a party on Saturday and was stupid and had a cone of marijuana I was called up for a full medical on Monday and now I am worried I have failed my urine test. I have been also taking codral flu tablets need some advise please.

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