Substances that we use every day can sometimes cause false-positive results. Substances That Can Cause False Positive Drug Test Consequences of a False Positive Drug Test.Nonsteroidal Anti-Inflammatory and Analgesic Drugs.Substances That Can Cause False Positive Drug Test.Everyday Substances That Can Cause A False Positive Drug Test.Let’s find out if the substances that we use every day can cause false positive results…. If you have tested false positive for any substance despite not taking any drug(s), you can definitely demand for a retest. On certain occasions, false-positive results can occur due to every day substances that we ingest such as foods, mouthwash, cold and cough medications, painkillers, CBD oil or other substances and even due to passive consumption such as weed smoke.įalse-positive results can also occur because of cross-reactivity during immunoassay test and these are confirmed by highly accurate screening method such as Gas Chromatography/Mass Spectrometry (GC/MS). Though uncommon, false-positive results can occur in some cases. Generally, the results are either positive or negative for drugs however, there are instances where the drug test could result in false positive.Ī false-positive result signifies the test has found the presence of substance in the specimen provided even though the person hasn’t ingested any drugs. Drug testing is generally done to look for the presence of illicit drugs or substances. Drug tests are performed for various reasons such as employment, competitive sports, schools, colleges, healthcare followup testing, etc.
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