How Long Does Weed Stay in Your System: Urine, Blood, Hair?

how long does weed stay in your system

Urine drug tests are the most common way to detect marijuana, which may show positive results several days after the last use. With heavy use, THC can sometimes be detected for several weeks. In a 2009 study published in Addiction, researchers monitored cannabinoid concentrations in the blood of 25 frequent cannabis consumers. During seven days of abstinence from cannabis, nine subjects, or 36%, had no measurable THC in their system, while the other 16 still had at least one positive THC test over the same timeframe. After the weeklong period ended, six subjects still had detectable THC concentrations, and all subjects had measurable levels of the metabolite THC-COOH.

Factors that Affect How Long Marijuana Stays in Your System

how long does weed stay in your system

Up to 1.5 inches of hair is taken near the scalp, which can detect marijuana up to 3 months after last use. The major THC metabolite is THC-COOH, which is the main metabolite used to detect cannabis on drug tests and lasts the longest in your system. This may be true with long-term marijuana use because THC can be stored in fat cells and accumulate. The accumulation of THC can extend the length of time it takes THC to leave your system.

  1. Although marijuana is becoming more widely accepted in the United States for medical and recreational use, it is still considered highly addictive.
  2. A series of quantitative tests can determine if drug usage is ongoing or has stopped.
  3. A false-positive is when the test result is positive for a substance, but the person hasn’t been using the substance.
  4. This type of testing is more expensive and time-consuming than qualitative tests and is normally reserved for people who have tested positive in a qualitative test.

It’s also affected by your unique physical functions and frequency of sun rocks thc consumption. This inactive metabolite is stored in body fat and gradually eliminated or metabolized. It remains in the body far longer than active THC, which is why so many cannabis detox drinks and kits claim to eliminate or mask the presence of THC metabolites. We are dedicated to transforming the despair of addiction into a purposeful life of confidence, self-respect and happiness. We want to give recovering addicts the tools to return to the outside world completely substance-free and successful.

How long does Marijuana stay in your system?

Urine and hair samples may show evidence of cannabis use several months after the fact. Consequently, Cary offers some shorter estimates of detection windows that he believes would be reasonable to expect given an individual’s frequency of usage and the sensitivity of the particular urine test. Hair tests tend to have the longest detection window, capable of registering the levels ofa non-intoxicating THC metabolite called 11-nor-delta9-caboxy-THC (THC-COOH) up to 90 days after cessation. Additionally, usage, as well as an individual’s unique biology make the calculation of a detection window (the number of days after ceasing usage that a drug test will continue to be positive) even more complex. For example, the Alere DDs 2 Mobile test system used roadside by law enforcement agencies has a cut off level for Delta-9-THC in saliva of 25 ng/ml.

Does CBD Cause A Positive Drug Test?

There have been reports of THC detected in blood for up to 30 days, although it is not as common. Marijuana is broken down by the body into metabolites, which are detectable on drug tests and can remain in your system even longer than THC. A urine test takes a visual and chemical examination of a urine sample to detect drug compounds that stay in pee. The test is cheap, and results can be ready in as little as 10 minutes. After use, cannabinoids reach the hair follicles via small blood vessels and from sebum and sweat surrounding the hair shaft.

How long does THC stay in your system?

Like a urine test, testing hair strands can detect traces of THC in the body after they pass from the bloodstream to the hair follicle. But it can also get into the hair from physical contact, meaning that you do not necessarily need to be taking marijuana to have your hair test positive for it. If you have been around secondhand marijuana smoke, have touched marijuana or even if someone who has handled marijuana touches your hair, your hair may test positive. The hair test can be positive for up to 90 days after exposure. The more fluids your body is processing, the faster weed metabolites will exit your system. For this reason, it’s good to stay reasonably hydrated in the weeks following up to your test, but don’t just drink a bunch of water in the day or so before.

They include detox pills and detox drinks which are made for the sole purpose of allowing you to pass a urine test after smoking marijuana. A new report from the UK finds that cannabis improves quality of life and provides other significant benefits in individuals suffering from PTSD. 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. The body processes THC (delta-9-tetrahydrocannabinol), the intoxicating cannabinoid known for creating euphoric, stoned effects in several ways, and is dependent on the method of consumption.

If you have a false-positive result, more detailed tests can determine if the result is caused by a famous people who died from alcoholism different drug. Depending on the frequency of cannabis use, it can take anywhere from 2-28 days for marijuana to leave your system. Elimination time is mainly dependent on your frequency of use and the length of time you’ve used.

However, there are different factors however that can impact how long marijuana stays in the body. Just make sure you’re investing in a quality brand like Quick Luck to deliver a clean sample. It’s also best to keep in do you need to wean off prozac mind that you have to be careful with lab urine if monitored pee testing is required. For many, the real question at hand isn’t “how long does weed stay in your urine?