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I just failed a hair folicle test for cocaine but I do not…

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I just failed a...

I just failed a hair folicle test for cocaine but I do not use

Doctor's Assistant: Thanks. Can you give me any more details about your issue?

I am trying to provide a 5 panel hair folicle test for custody battle and just received the results showing cocaine but i do not use

Submitted: 2 years ago.Category: Drug Testing
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Answered in 2 hours by:
1/28/2016
Drug Testing Expert: Dr. David, Board Certified Physician replied 2 years ago
Dr. David
Dr. David, Board Certified Physician
Category: Drug Testing
Satisfied Customers: 49,753
Experience: Experienced Physician trained in New York City. I'm ready to help.
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This is Dr. David

if you are around people who do use cocaine, it can turn your hair testing positve

http://www.ncbi.nlm.nih.gov/pubmed/11728736

this study shows that

"significant concentrations of cocaine (>1 ng/mg) and moderate quantities of benzoylecgonine (generally <0.5 ng/mg) are still detectable up to 10 weeks after contamination (external contamination of the hair follicle). These results question the reliability of hair testing. In fact, even using the most sophisticated decontamination procedures it is not possible to distinguish a drug-contaminated subject from an active user. Thus, while a negative result excludes both chronic use and "contact" with drugs, a positive result cannot and must not be interpreted as a sure sign of drug addiction, but should be further confirmed by urine analysis."

you should show this article to your doctors

ask for confirmatory urine testing

and confirmatory mass spectroscopy/gas chromatography confirmatory testing

if you don't use cocaine, the confirmatory tests will be negative.

let me know if you have other questions.

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