How Long Does Weed Stay In The Body For A Drug Test

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The total amount of time our body retains traces of weed depend on a many factors, like how frequently you smoke, your health and weight, metabolism rate etc. The potency of the weed you smoke also affects how long it’ll stay in your system.

weed

No one can really predict how long you would test positive for weed, because the rates of THC metabolism vary person to person. However there are a few common guidelines. As per the experts, the amount of time weed stays in your system is somewhere between a week to a month, depending on how often it is used.

The most common tests to detect weed in your system are urine, saliva and hair tests. Each test has an individual detection time which is essential to know. The most commonly used test is the urine drug test as it is cheap and has much longer detection time compared to a saliva test.

Researcher working with chemicals

  • On a Urine Drug Test, weed intake will show positive within 2 to 5 hours of use. This is based on frequency of weed use, though it does not take into account the body fat and weight of the user:
    • Positive for 1 to 6 days for One-time user
    • Positive for 7 to 13 days for Moderate user
    • Positive for 15 days or more for Frequent user
    • Positive for 30 days or more for Heavy user
    • In some cases heavy smokers have being tested positive even after 45 to 90 days of quitting
  • A Saliva Drug Test will test positive only within an hour of use, however it might only show positive for just twelve hours after last usage.
  • In case of a Hair Drug Test, THC appears around 7 days after using and nearly all hair drug tests would test for a 90-day period. However, THC doesn’t bind to the hair follicle therefore hair test is not considered a correct testing method for weed use.
  • A Blood test can come positive if THC level is detected above 0.3ng/ml, this can appear in the blood sample for up to a month. Blood tests are not conducted in most cases because they are expensive and should be administered by a professional.

As per the National Institute on Drug Abuse, the quantity of THC in weed you can be an aspect in how long it remains in your body.

hand with pen drawing the chemical formula of thc

The drug potency relies on potency of Tetrahydrocannabinol (THC). It is the chemical combination found in the cannabis plant, also known as weed. THC causes behavioral effects of weed that generate the “high” which user’s experience. When THC enters in your system, it is rapidly absorbed in the fatty tissues of many organs.

Remember, at times drug tester’s mix and match these tests, therefore be cautious out there. All the best!

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