4dsp Drug Test - Who Plays Bigfoot In Tina Fey Commerciallibrary Detail If you or a. What drugs does the 4dsp/opa/phn test for? Just wondering if that specific tests The urine drug test 1687 4dsp/phn is a panel test that screens for the presence of certain drugs in a person's urine. The specific drugs that are being tested for may vary depending on the lab. But typically 4 panel instead of 5 means no thc if. A 1687 drug urinalysis is a 4 panel drug test, testing for either opiates, marijuana (tetrahydrocannabinol, or thc), cocaine, and methamphetamines.
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