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how long does weed stay in urine

how long does weed stay in urine

how long does weed stay in urine

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how long does weed stay in urine,

If you’re asking yourself ‘how long does marijuana stay in your system,’ what you’re more likely wanting to know is the amount of time that it stays in your urine. In other words, when people ask things like ‘how to flush your system efficiently,’ what they really want to know is how to clean urine to the point where THC metabolites can no longer be detected.

Drug testing is of course pretty standard protocol among companies all over the world. Most employers require that their employees undergo a test revealing the absence of drugs. Of course, you already know this. After all, you’re here online searching for how long weed stays in your system for!

Apart from blood and saliva tests, urine testing is one of the most effective ways to screen a person for marijuana use. This is quite obviously why one of the most frequently-searched terms online is ‘how to clean your urine.’ Urine testing is the cheapest method of drug testing, and it has one of the longest detection periods. Therefore, it’s essential you know how long weed can be detected in your urine after consuming it.

The amount of time that marijuana will show up on urine screenings depends largely on how often the individual uses. The following are some basic guidelines on how long the drug will show up on a urine test based on how often you use:5

  • Less than twice per week smoker: 1-3 days.
  • Several times per week smoker: 7-21 days.
  • Daily smoker: 30 days or longer.
  • Oral ingestion (edibles): 1-5 days.
how long does weed stay in urine
how long does weed stay in urine

In other world

According to Mayo Clinic Proceedings, weed is detectable in urine for the following amounts of time after last use:

  • Occasional users (up to three times a week): 3 days
  • Moderate users (four times a week): 5 to 7 days
  • Chronic users (daily): 10 to 15 days
  • Chronic heavy users (multiple times a day): more than 30 days

Cannabis metabolites are fat-soluble, which means they bind to fat molecules in your body. As a result, it can take some time for them to leave your system.

Urine testing is the most common testing methodTrusted Source.

urine test

The urine test is based on detection of 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid (9-carboxy-THC), a metabolite of delta-9-THC, which is the primary pharmacologically active component of marijuana. Studies involving humans indicate that 80%-90% of the total dose of delta-9-THC is excreted within 5 days–approximately 20% in urine and 65% in feces. Plasma concentrations of delta-9-THC peak by the time a smoked dose is completed and usually fall to approximately 2 ng/ml within 4-6 hours. 9-carboxy-THC is detectable in plasma within minutes after a dose is smoked and remains in plasma considerably longer than THC itself. Urine from marijuana users contains quantities of 9-carboxy-THC in both free and conjugated form, as well as other cannabinoids (THC and its metabolites) detectable by the test.

When the manufacturer’s instructions are followed, urine samples containing at least the stated detection level of 9-carboxy-THC will test positive at least 95% of the time. In a CDC field-test survey of 64 laboratories, those using the SYVA system for urine screening for cannabinoids had an incidence of 4% false-positive resultswhether these errors were analytical or clerical in nature was not determined. The manufacturer states that any positive test result should be confirmed by an alternative method.

Only blood-sample measurements are likely to correlate with a person’s degree of exposure; attempts to correlate urine concentration with impairment or time of dose are complicated by variations in individual metabolism, metabolite accumulation in the chronic user, and urine volume changes due to diet, exercise, and age. Therefore, a positive result by the urine cannabinoid test indicates only the likelihood of prior use. Smoking a single marijuana cigarette produces THC metabolites that are detectable for several days with the cannabinoid assay.

how long does weed stay in urine
how long does weed stay in urine

urine test

THC can accumulate in body fat, creating higher excretion concentrations and longer detectability. If an affect on performance is the main reason for screening, the urine cannabinoid test result alone cannot indicate performance impairment or assess the degree of risk associated with the person’s continuing to perform tasks. If a history of marijuana use is the major reason for screening, the urine test for cannabinoids should be able to detect prior use for up to 2 weeks in the casual user and possibly longer in the chronic user.

A chain of custody for the sample must be maintained by the testing laboratory, as well as during the steps that bring the sample to the laboratory. All urine samples positive by the cannabinoid assay need to be confirmed by an alternate method that is as sensitive as the screening test, a condition not always met.

how long does weed stay in urine,

Methods employed for cannabinoid confirmation are gas chromatography, gas chromatography/mass spectrometry , and high performance liquid chromatography .

Because of costs involved in more complex confirmatory procedures, confirmatory tests have not always been conducted to verify presumed positive test results. Since the screening tests are immunologically based and measure both conjugated and free forms of THC metabolites, any confirmatory procedure should either measure both forms or should include a hydrolysis step to increase analytical sensitivity.

Confirmatory techniques may be specific for a particular THC metabolite, while the screening kits react with virtually all THC metabolites, a further complication in confirming screening results. SYVA markets two different cannabinoid assay kits with a twofold to fourfold difference in the amount of THC metabolite required to produce a positive test result. Regardless of which assay kit is used, test results should be interpreted by qualified personnel

and positive results verified so that there is a very limited possibility of a false-positive result. Reported by Div of Preclinical Research, Div of Epidemiology and Statistical Analysis, National Institute on Drug Abuse; Div of Technology Evaluation and Assistance, Laboratory Program Office, CDC.

What Is Urinalysis?

urinalysis is a series of tests on your urine, or pee. Doctors use it to check for signs of common conditions or diseases. Other names for it are urine test, urine analysis, and UA.

how long does weed stay in urine
how long does weed stay in urine

When will marijuana show up on a drug test?

Several tests are used to detect the presence of marijuana. They include:

  • Saliva test: A person can test positive for marijuana for up to 34 to 48 hours after the last marijuana use.
  • Urine test: Infrequent users test positive for one to three days, moderate users can test positive for 7 to 21 days and a heavy user can test positive for a month or longer after the last marijuana use.
  • Hair test:  Marijuana can be detected in a hair test for up to 90 days.
  • Blood test: Marijuana will be visible in a blood test for up to 36 hours.

What Happens When You Smoke Marijuana?

THC (delta-9-tetrahydrocannabinol) is believed to be the primary mind-altering chemical found in the cannabis plant. When a person smokes marijuana, THC passes from the lungs into the bloodstream,

where it is carried to the brain and other organs. Via its interaction with the endocannabinoid system,

THC affects areas of the brain related to movement, sensations, coordination, memory, reward, and judgment.1,2

When smoked, the effects are felt right away and generally last for 1 or 3 hours. When eaten, such as in edibles,

a person may not feel the effects for 30 minutes to an hour, and the effects can last for several hours.4

Some effects that people may experience from using marijuana include:1,4

  • Altered senses.
  • Distorted sense of time.
  • Impaired coordination.
  • Trouble thinking clearly or solving problems.
  • Trouble remembering things.
  • Mood swings.
  • Anxiety.
  • Fear.
  • Paranoia.
  • Hallucinations.
  • Delusions.
  • Increased appetite.

How to Flush Weed Out of Your System

If you’re looking for a quick fix to rid your body of weed, unfortunately, there is none. “As for the metabolism, it’s not something you could reliably speed up,” Bumpus says, but it won’t be easy.

Some people suggest exercising to speed up metabolism of THC, but it probably doesn’t do much. “The rate of metabolism is really going to be dependent on proteins in your liver and how fast they’re acting,” she says.

Drinking water can help your kidneys excrete the metabolites, Bumpus adds, but it won’t speed up metabolism. Some people drink a lot of water before getting their urine test to dilute their sample and reduce the risk of THC metabolites being above the cutoff level. However, drinking too much water can get your sample flagged for

purposeful dilution, and you may need to provide another.

how long does weed stay in urine
how long does weed stay in urine

How to get marijuana out of the body faster

Ultimately, there are only two strategies that work for this, and they are decreasing the concentration of THC in the marijuana and speeding up the metabolism.

Proper hydration can prevent a drug test from showing unusually high THC concentrations. For people whose test results are on the border of positive and negative,

this means that being dehydrated may increase the chances of a positive result.

There is no reliable way to speed up the metabolism. Exercise might help the body metabolize more THC,

but exercising too near to a test may also cause a positive result.

The single most important factor is the time from the last exposure to the time of testing.

Takeaway

There is no way to accurately predict the amount of time it will take an individual to metabolize marijuana and eliminate it from their bodies. Home tests can help people test themselves for the presence of marijuana in their system.

For almost all people, marijuana should disappear or be very low in concentration within 30 days. For infrequent users, it may take 10 days or less for marijuana to leave the body.

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