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Drug tests don't actually look for drugs. They look for deviations from normal in your body's chemistry.
by mitchell_h 11y ago
Drug tests don't actually look for drugs. They look for deviations from normal in your body's chemistry.
- angdis 11y agoIt depends. Floyd Landis was pinched by a test performed on a mass spectrometer !
- rjsw 11y agoMaybe. Part of the reason that he contested it for so long was that although he had doped he had not actually taken anything that would produce the reported result.
- task_queue 11y agoWhat? Yes they do. They look for the chemical itself or its metabolites. Getting a sample sent off to a lab usually means "give this to a facility that can perform a GC/MS or whatnot and has enough reference samples on hand to determine what is in this fluid"
- wesomefolks 11y agoAbsolutely right. Same thing with HIV tests, they don't look for the virus because they can't. So they look for other signals, which might be incorrect. You may even test 3 times positive and the fourth time negative. Ah, the unspoken limits of Science!