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A member asked:
How much time can blood tests detect drugs?
A doctor has provided 1 answer
Depends: It is usually urine that is tested for drugs of abuse. Different drug have different elimination times and it also depends on the chronicity of use. In general cocaine has the fastest elimination and THC (cannabis) the longest. In a chronic user THC may be positive for month after last use.
Answered 7/16/2014
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