Online Growing Cannabis Education Center

Marijuana Drug Test Types

Marijuana Urine Testing

THC is one of the “SAMHSA-5. The five drugs tested for in conventional NIDA approved drug assessments. Just one use of cannabis might be detected by a normal urine drug test for 1-6 times depending on quantity smoked, individual body metabolism rates, and the cutoff level utilized by the test (15 ng/ml, 20 ng/ml, 50 ng/ml, 100 ng/ml). Long-term or everyday use of Marijuana could be detected with a normal urine drug test for 7-30 days with respect to the same elements outlined above. Lower amounts of Cannabinoids do stay within the body for more than thirty days, but seem unlikely to cause a positive drug test due to cutoff amounts.

Tetrahydrocannabinol (THC) is quickly assimilated by breathing and system. intestinal the. It’s nearly entirely digested. The prevalent metabolite is 9-carboxy-11-nor-delta-9-THC, which present in the plasma, feces and pee along with additional substances. Extremely low levels of THC could be detected in urine throughout the first several hrs, but tetrahydrocannabinol persists in pee at a noticeable concentration for a number of days after smoking.
— Onsite Drug Screening

The conventional THC evaluation is a one action accelerated, qualitative immunoassay for the recognition of tetrahydrocannabinol compounds (9-carboxy-THC) in urine. The cutoff for GC-MS is normally 15 ng/ml. A more reasonable approximation is nearer to 3 – 4 days for persistent users, though it is broadly maintained that THC metabolites may result in a positive pee check for weeks after use. Toxicologist Paul Cary provides a complete summary of current study in The Bud Detection Window [Drug Court Review, Vol 5(1)]. Cary reviews a few studies documenting detection windows more than thirty days, and discovers important confounds or constraints to create in all of them. He concludes: “Recent medical literature indicates it is unusual for infrequent pot smokers to check positive for cannabinoids in pee for more than 7 days making use of conventional cutoff levels. Following smoking cessation, persistent smokers wouldn’t be likely to remain good for more than 21 times, even if making use of the 20 ng/mL cannabinoid cutoff. While longer recognition instances have been recorded in study studies, these prolonged removal findings represent unusual events and may not be utilized as exculpatory evidence in the bulk of case adjudications.”

marijuana urine test

Marijuana Hair Testing

Marijuana use is noticeable with hair assessments and it is normally contained within the conventional hair test. Hair tests typically consider the newest 1.5 inches of development and use these for testing. That gives a recognition period of about 3 months. If an individual’s hair is shorter than 1.5 ins, this recognition interval is going to be shorter.

Marijuana Saliva Testing

Within recent years, new technologies have been created which allow for saliva screening for the presence of Cannabis (THC). We don’t now have details about what the discovery period is for these assessments.

Marijuana Blood Test

Cannabis is detectable in the blood for about 2-3 times after use in an infrequent consumer. Regular use can be detected in the blood for about 14 days.


Substances or Conditions which can cause false positives

Ibuprofen; (Advil, Nuprin, Motrin, Excedrin IB etc)
Naproxen (Aleve)
Ketoprofen (Orudis KT)
Promethazine (Phenergan, Promethegan)
Pantoprazole (Protonix)
Riboflavin (B2, Hempseed Oil)
Kidney infection (Kidney disease, diabetes) Liver Disease
Dronabinol (Marinol)


This drug testing info is a summation of data collected from journal articles, website visitors, sites, and other sources. Detection intervals rely on frequency and quantity of drug tolerance, metabolic rate, body mass, age, complete health, use, and urine pH of each person. Many materials that aren’t tested for in fundamental or extended urinalysis tests MAY be tested for with a laboratory prepared to attend the problem, even though that is unusual.

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