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The urine test is measured in nanograms. Not milligrams.

For example, benzoylecgonine is the main metabolite of cocaine. A urine level of 300 nanograms per millilitre of benzoylecgonine is considered a positive result for cocaine use in most countries.


Saying that, it also depends on the user's tolerance for drugs, which differs in each person. if you have a low tolerance for example, then drugs you took days ago may still show up today in a urine test, making the results much higher.
Like alcohol, you drink one night, then the next morning you could still be over the legal limit because your body hasn't broken it down yet.


Some medications contain traces of some drugs that are looked out for in urine tests. For example, morphine and some psychotherapy drugs contain MDMA, which is found in ecstasy. If you are taking prescribed drugs, you should let your drug tester know, providing proof. If you take certain prescribed medication, it could elevate the urine result.


Pregnancy was once believed to cause false or high positives in drug tests, but this was proved to be a myth. The chemicals produced in pregnancy do not interfere with drug tests.

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Q: On the urine test why would the mg be higher than what you took?
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