...metabolites found in a drug test? I know that certain substances can cause a false positive. But, what levels can be attributed to these innocuous substances? Ex. if I took a urine test at my dr. and came out positive for heroin at 400-450, what does that mean? Is it possible it could be a false positive, though they ran confirmation test? Could poppy seeds be accountable? Or, what about cough syrup with codeine?
Can anyone (DR/RN/Med Asst) give me specifics on the amounts of heroin...
- Thread starter Sunshine
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