I recently took a pre-employment drug screen,after working as a temp for 8 months,and they informed me that my drug screen came back positive for thc,impossible,I take anti-inflamatory medication daily for extrem carpul tunnel and have learned that could have cause a false positive reading,however they refuse to let me retest.I need to know what my rights are to prove my innocence.
Anti inflamatory medications will no longer test positive for THC. The screening reagents were changed years ago to eliminate the problem. However, if this was an employment test then a specimen that screened positive for THC would have to go for confirmation testing by gc/ms. The combination of the two is confirmation that they found THC in your specimen. The only way to be sure testing was performed properly is make a written request to the lab that did the testing of all data and results performed on that specimen. It will include calibration, controls, chain of custody documentation etc. A review of the data pack will verify the accuracy of the results. The specimen is usally kept for one year after testing if it was performed at a reputable laboratory. Each state has laws regarding health care records so just look yours up to determine what type of documentation you will need for requesting your results.
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