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false positive drug test for tetenus shot
My son had 5 staples put in his head and the hospital put a local numing agent on his injury and gave him a tetanus shot.  He went back to work and they did a 5 panel drug test that showed up inconclusive.  Now they sent it to a lab and won't let him work until the results come back.  He hasn' t taken any drugs but took 2 bayer aspirin.  Why is it showing up inconclusive?  He could lose his job now.  Could the combination of the local and the tetanus and the bayer cause this false positive?  
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351246 tn?1379685732
Hi!
The inconclusive report on drug tests does not mean that your son abused drugs. It could be because the test was not conducted properly. It is unlikely to be due to the tetanus shot but can be due to the local anesthetic used and due to aspirin. So, this test will need to be read in the light of medications taken and should not be taken as drug abuse. However, you need to discuss this with your son’s treating doctors as they have seen the report, your son’s condition and are the best judge of the situation. Take care!
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