very rare
Yes! Lamictal will show a false positive on drug screens. You can have a lab use a maspectrometer specifically for PCP in order to officially rule it as a "false positive."
Yes, you can fail for a false positive on drug screens after an injection of Depo-Provera. Mostly people with depression, anxiety, or bi-polar disorder can test a false positive. However, it should not test positive everytime, only around the days after recieving the injection.
False Positive
you can have a false negative but NOT a false positive
A list of things about as long as your arm. Included are such benign drugs as advil, aleve, Motrin, Bayer Select Pain Relief Formula...basically, go to the pain reliever shelf in the drugstore. Everything on it except aspirin and Tylenol will throw a false positive on a marijuana screen. However, the tests have been refined to recognize these items, and they are ignored. The labs know what to look for. If there is any question, the sample can be reevaluated using more complex methods.Additional InformationAccording to Ask Doc Web, the following substances have been known to generate false positives for THC (the active ingredient in marijuana) or marijuana.Advil - false positive for THC, MarijuanaAleve - false positive for THC, MarijuanaAnaprox - false positive for THC, MarijuanaAnsaid - false positive for marijuanaApo-Naproxen - false positive for THC, MarijuanaAtripla - false positive for cannabinoid THCB2 vitamin - false positive for THCBayer Select Pain Relief Formula - false positive for THC, MarijuanaClinoril - false positive for THC, MarijuanaCramp End Tablets - false positive for THC, MarijuanaDiabetes - false positives for Amphetamines, Cocaine, THC, Ecstasy, Meth and OpiatesDolobid - false positive for THC, MarijuanaDronabinol (Marinol) - false positives for THCEdecrin - false positive for THC, MarijuanaEfavirenz - false positive for THC, MarijuanaFeldene - false positives for THCFenoprofin - false positive for Marijuana, Amphetamines, BarbituratesFlurbiprofen - false positive for marijuanaGenpril - false positive for THC, MarijuanaHaltran - false positive for THC, MarijuanaHempseed Oil - false positive for THCIbuprin - false positive for marijuanaIbuprofen - false positive for Marijuana (THC)Ifenoprofen - false positive for THC, MarijuanaIndocin - false positive for THC, MarijuanaKetoprofen - false positive for THCKidney infection - false positive for Amphetamines, THC, Ecstasy, and OpiatesLiver Disease - false positive for Opiates, Ecstasy, THC and AmphetaminesMarinol® false positive for Marijuana (THC)Meclomen - false positive for THC, MarijuanaMediprim - false positive for marijuanaMedipren - false positive for THC, MarijuanaMidol - false positive for THC, MarijuanaMotrin - false positive for THC, MarijuanaNalfon - false positive for Marijuana, Amphetamines, Barbituates, Benzodiazephines, MethaqualoneNaprosyn - false positive for THC, MarijuanaNaproxen (Aleve) - false positive for THC, MarijuanaNavonaprox - false positive for THC, MarijuanaNSAIDS - false positive for THC, MarijuanaNuprin - false positive for THCOrudis KT - false positives for THCOxaprozin - false positive for THC, Marijuana, BenzodiazepinesPamprin® - false positive for THC, MarijuanaPantoprazole - false positive for THCPhenergan® - false positive for THC, MethadonePrescription NSAIDSPromethazine - false positive for THCPromethegan - false positive for THCProton pump inhibitors - false positive for THCProtonix - false positive for THCRelafen - false positive for MarijuanaRiboflavin (vitamin B2) - false positive for THCRufin - false positive for THC, MarijuanaSustiva (Efanirenz) - false positive for THC or MarijuanaTolectin® - false positive for THC, MarijuanaVoltaren - false positive for THC, MarijuanaIt appears that both prescription and over-the-counter NSAIDS (Non-Steroidal Anti-Inflammatory Drugs), such as Advil®, Aleve®, Motrin®, Tylenol®, Pamprin®, Midol®, etc. have all been known to generate false positives for marijuana on drug screens.Additionally, some medical conditions such as diabetes, kidney infection, and liver disease may result in a false positive.
It is very unlikely for one drug to cause a false positive on a drug screen for any other substance. Drug screens test for metabolites of specific drugs. All drug tests have a rating based on specificity and sensitivity. The higher the sensitivity, the lower the specificity. Basically it is only possible to have a false positive by using another drug that is very chemically similar to the positive test.
False positive for methadone
False positive for methadone
False positive for methadone
Positive = You really did it. False Positive = The test said you did it, but you really did not.
What is false positive in widal test
were you taking hormones or injections, if so then yes it is a false positive, if not then wait a week or two and test again, goodluck