This is because other tests usually only test for metabolites, which are not psychoactive. This is drawn out to around one week for a more sensitive 20 ng/mL threshold. However, in a more recent study published in Drug and Alcohol Review, researchers tested 105 hair samples and did not detect any THC or THC-OOH in nonusers. They did detect THC in the hair of 77 percent of heavy cannabis users and 39 percent of light users.

The total amount of time that weed stays in your system depends on the conditions of the user and how frequently they smoke marijuana. As you continue to consume cannabis, the THC accumulates in the body. The strength and quantity of the THC consumed can be the difference between a positive and negative test, as drug tests are searching for THC, not cannabis, says Medical News Today.

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Once THC makes its way to the follicle and ends up in the hair strand, it’s there forever. A body hair of the same length could show weed use back 180 to 360 days. At the moment, however, there are no conclusive studies verifying this. So technically speaking, ‘weed’ doesn’t stay in your urine, THC-COOH does. And it’s totally inactive, meaning you’re not still under the influence of cannabis despite the presence of this chemical in your system.

  • Even drug panel tests can be customized by an employer or organization to look for a specific substance that other employers do not screen for.
  • What cannabis “breathalyzers” and other drug panels do is to check for cannabis metabolites called THC-COOH, which can linger in the body for days or weeks depending on the frequency of consumption.
  • Because of all of the factors involved, there may not be a way to accurately predict how long THC will remain detectable.
  • If you’re wondering how long THC and weed stay in your system, including your bloodstream, urine, and hair, you’ve come to the right place.

USA TODAY is exploring the questions you and others ask every day. From “How long does alcohol stay in your system?” to “What is Delta-8?” to “In what states is weed legal?”, we’re striving to find answers to the most common questions you ask every day. Head to our Just Curious section to see what else we can answer for you.

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If your test is coming up sooner, certain detox drinks are known to flush your system the same day you drink them keeping you clean for a period of four to six hours. With edibles or tinctures, THC will enter the bloodstream through the walls of the stomach and intestines, traveling directly to the liver. The liver breaks down much of the THC to a cousin compound called 11-hydroxy-THC, which also enters the bloodstream. THC and 11-hydroxy-THC are detectable in the bloodstream after cannabis is ingested through the digestive tract.

how long does weed stay in your blood

Long-term use can result in changes in the brain, which can lead to tolerance, dependence, and addiction. Inpatient and outpatient programs can help you achieve long-term recovery and improve your quality of life. Although trace amounts of THC may not produce a “high,” you may increase your how long does weed stay in your system risk of it being detected on a drug test. CBD should not produce a positive test result when used on its own because it does not produce the same metabolites as THC. However, CBD is not regulated by the Food and Drug Administration (FDA), which means it could contain small amounts of THC.

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Millions of employees and potential employees are drug tested every year in the United States and elsewhere. They are measured for drug metabolites in their urine, blood, hair, saliva, breath, sweat, and even fingernails. For instance, when cannabis is vaped or smoked, it’s quickly absorbed by the lungs and there is a sharp increase of THC in the bloodstream within minutes. Evidence of cannabis consumption stays in your hair for longer than any other system in your body.

how long does weed stay in your blood

Below you’ll find the factors affecting the duration of THC presence and provide insights into different marijuana tests. Tetrahydrocannabinol (THC) is the primary psychoactive compound in marijuana, responsible for the euphoric “high” that users experience. As mentioned, this 30+ day estimate could be overestimated although it is a common reference in the marijuana literature. Blood tests for meth are uncommon, but they may show if meth has been taken within the past 25 hours.