by smoking so much that you forgot you smoked
no
no... only drugs that are chemically similar can occasionally cause a false positive.
Yes, Yes, Yes!! I took one dose of Zzzquil (the sleep aid from the makers of Nyquil) the night before and my UA came up positive the next day for alcohol.
Nothing, large amounts is possible to show a false positive for PCP though (unlikely).
No it can not. The tests read hormone levels and the drink has nothing to do with that.
Xanaflex WILL show up as a benzo in some cases ona standard UA.....false positive. FACT
Nope. Gotta be some alcohol involved somewhere. There is practically no such thing as a false positive for alcohol (although there are possible sources other than booze).
Yes, Sudafed (pseudoephedrine) can potentially cause a false positive on a urine drug screen (UA) for amphetamines. This is due to its chemical structure, which can sometimes be misidentified by testing methods. However, confirmatory tests, such as gas chromatography-mass spectrometry (GC-MS), can differentiate between pseudoephedrine and actual illicit amphetamines. If there is a concern about false positives, it's advisable to inform the testing facility about any medications taken.
MDMA.. (molly, ex, ecstasy) is a common cause for positive AMP on UA
No, nothing they test for is in it! It's an anti-epileptic or anticonvulsant
Most cough products which contain decongestants (pseudoephedrine, ephedrine, synephrine, phenylpropanolamine) can cause false positives with methamphetamine drug triage tests. The amount necessary which could cause a false positive depends on the detection sensitivity of the specific analyzer being used (they have different detection thresholds).
opiates.