Passing a marijuana drug test: What you need to know - The Cannifornian

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Date:
Monday, Nov 21, 2016

The best way to beat a marijuana test is simple: Don’t use drugs in the weeks leading up to a test. It’s also a good idea to delete any Facebook photos that proudly show off your smoke-blowing skills.

What does a test do? It looks for evidence of the psychoactive ingredient of cannabis, THC. The most common type of test — because it’s quick, simple and costs under $25 — is a urine test. You’ll be given a specially designed secure cup, usually with a temperature-gauging strip. It will get sealed with tamper-resistant tape, then sent via express delivery service to a testing laboratory.

If you use cannabis, this is what you need to know:

A urine test detects usage in the past 1 to 3 days in infrequent users — up to 30 days for habitual users. A saliva test detects usage in the past 24 hours. A hair test detects usage in the past three months.

Any pre-test advice? Southern California cannabis entrepreneur David Atkinson, who has advised weed-smoking musicians who hold day jobs, recommends drinking a lot of fluids to dilute any lingering THC — and not giving urine first thing in the morning, when THC is most concentrated.

It is possible to cheat on a test? It’s not possible to mask a positive urine sample by adding other substances. That has led some users to buy synthetic urine and then use a heating pad to increase the temperature of the urine to 98.6 degrees. “Detox kits” are also available on the internet that claim to help flush the body of THC.

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