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root canal therapy and positive drug screen for cocaine

Do Dentist use any medicines during a root canal or tooth procedure that can cause a positive drug screen for cocaine?
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540545 tn?1377622918
MEDICAL PROFESSIONAL
Sorry... that states novocaine.. which isn't widely used anymore.  I'm not even sure if they even sell it anymore.  But perhaps lidocaine (which is widely used) can also cause a false positive.
Helpful - 0
540545 tn?1377622918
MEDICAL PROFESSIONAL
I did a little research online.  I can't find any scientific articles that specifically deal with positive test results of cocaine from the use of lidocaine (anesthetic) but it is mentioned a few times.   Here's a website with the information posted for false positives.  You may want to contact the writer of the article to see what his/her sources were.

http://www.med.nyu.edu/patientcare/library/article.html?ChunkIID=13837

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540545 tn?1377622918
MEDICAL PROFESSIONAL
Not to my knowledge, there is nothing that can cause a positive cocaine result.
Helpful - 0

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