Will I fail a urine drug test?

That depends on what type of urine drug test is used. If you are subjected to a urine dip test or a test using immunoassay then the test could be positive for use of THC. This is because those tests are limited and unable to tell the difference between cannabinoids.

If the test you are given uses LC/MS then you will be negative for the use of THC. This test which is the gold standard in urine drug testing is able to tell the difference between any cannabinoid including THC.

If you are going to be drug tested I recommend you ask for the test to be done by a lab using LC/MS.