No.
no.
To the best of my knowledge, energy drinks cannot cause false positives for PCP.
No.
No.
No it should not.
yes
There is pretty much nothing that would cause a false positive for cocaine. Good luck.
There are few things that can cause a positive cocaine test the most common is quinine so if you are partial to a gin and tonic this could cause a positive test.
No.
no, but it will cause a positive result for opiates (heroin).
yes
Yes, too much of any Benzocaine can cause a false positive.