November 9th, 2010
Read about false positive meth drug test.
A false positive is a defined as a drug free sample tested as positive for drugs in a drug screening. This can happen because of a number of reasons like mixing up sample, improper testing procedures, passive inhalation and incorrect paperwork. False positives are commonly due to cross reactants. Cross reactants are those substances which have a similar structure like a drug or a drug metabolite which is being tested for. Most of the false positives are because of these cross reactants suggested a recent study.
A study of 161 prescriptions and over the counter medications showed that 65 of them produced false positive results in the urine drug screening revealed a report by Los Angeles Times New Service. A document leaked by a disillusioned company employee suggested that more than 250 over the counter medications and prescription drugs can cause a false positive.
Primatine mist can cause a false methamphetamine positive because of the way the chemical is metabolized. The patients suffering from ADHD take pills containing pseudoephedrine can cause a false meth positive result. The sprays used by asthmatic patients can also be one of the reasons behind a false positive. Taurine from some energy drinks can create a false positive for narcotics. Many inhalers can cause a false positive for a meth drug test. Ephedra found in the over counter diet pills can also be of the drug causing a false positive. People suffering from kidney diseases and liver diseases can also face this problem because of their prescribed medications. Many of the dietary supplements can also be a reason for false positive.
Substances that could possibly cause a false positive
- Ephedrine, pseudoephedrine, propylephedrine, phenylephrine, or desoxyephedrine (Nyquil, Contact, Sudafed, Allerest, Dimetapp, etc)
- Over-the-counter diet aids with phenylpropanolamine (Dexatrim, Accutrim)
-Phenegan-D, Robitussin Cold and Flu, Vicks Nyquil
- Over-the-counter nasal sprays (Vicks inhaler, Afrin)
- Asthma medications (Marax, Bronkaid tablets, Primatine Tablets
- Many prescription medications.
In case of false positive, one should always stress on undergoing a confirmatory test. If you test negative in the confirmatory test, then the authorities will come to know that this was the case of false positive and they register you negative. Passing a drug test is no more a difficult task with the advent of drug solutions and kits. The FDA laboratory urine drug testing kits can help you test yourself at home and get prepared for a drug testing.