Do you know whether the testing laboratory saved a sample to be re-tested? Since it seems you are trying to dispute the drug test with your employer, I would suggest you speak to an employment lawyer who has some experience in this area.
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You need to obtain a copy of the report ASAP as well as submit yourself to your own medical testing (blood, urine, hair, etc) for evidence of no substance. Also, they usually take 2 samples at the same time you need to secure that and have it tested by your own lab.
Attorney Palumbo is correct. There should beo samples - an "A" and a "B" sample. Speak with an attorney and arrange to retain him or her to assist you in accessing the samples to do your own testing of those samples. In addition, by now you should have your own test competed so that it may be compared to the subject samples.
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