Verification of the test results with a different screening test or additional analytical tests should be performed to avoid adverse consequences for the patients. The urine drug dip test is easy to use, up to 99 accurate, rapid and cost effective for any on site drug screening. Results from such tests should be confirmed using additional analytical methods, including gas chromatography-mass spectrometry.Ī number of routinely prescribed medications have been associated with triggering false-positive UDS results. The most commonly used tests to screen urine for drugs of abuse are immunoassays, even though false-positive results for drugs of abuse have been reported with a number of these rapid-screening products. False-positive results for methadone, opioids, phencyclidine, barbiturates, cannabinoids, and benzodiazepines were also reported in patients taking commonly used medications. False-positive results for amphetamine and methamphetamine were the most commonly reported. Reports of false-positive results were found for the following formulary and nonprescription medications: brompheniramine, bupropion, chlorpromazine, clomipramine, dextromethorphan, diphenhydramine, doxylamine, ibuprofen, naproxen, promethazine, quetiapine, quinolones (ofloxacin and gatifloxacin), ranitidine, sertraline, thioridazine, trazodone, venlafaxine, verapamil, and a nonprescription nasal inhaler. Categories of medications included antihistamines, antidepressants, antibiotics, analgesics, antipsychotics, and nonprescription agents. A total of 25 reports of false-positive UDS results were identified. If a class effect was suspected, additional agents in the category were searched. The references of each report describing a medication whose use was associated with false-positive UDS results were also reviewed. Methamphetamine is generally detectable in the urine for 3-5 days, depending on urine pH level.The implications of potential false-positive urine drug screen (UDS) results for patients receiving commonly prescribed medications were evaluated.Ī comprehensive literature review was conducted to identify false-positive UDSs associated with all clinic formulary medications, as well as common nonprescription medications. Thus, the presence of the parent compound in the urine indicates Methamphetamine use. However, 10-20% of Methamphetamine is excreted unchanged. Methamphetamine is excreted in the urine as amphetamine and oxidized and deaminated derivatives. The effects of Methamphetamine generally last 2-4 hours and the drug has a half-life of 9-24 hours in the body. More acute responses produce anxiety, paranoia, hallucinations, psychotic behavior, and eventually, depression and exhaustion. Cardiovascular responses to Methamphetamine include increased blood pressure and cardiac arrhythmias. Acute higher doses lead to enhanced stimulation of the central nervous system and induce euphoria, alertness, reduced appetite, and a sense of increased energy and power. The drug can be taken orally, injected, or inhaled. Methamphetamine is made in illegal laboratories and has a high potential for abuse and dependence. Methamphetamine is closely related chemically to amphetamine, but the central nervous system effects of Methamphetamine are greater. Methamphetamine (mAMP / MET) is an addictive stimulant drug that strongly activates certain systems in the brain. Street Names: Bikers Coffee, Black Beauties, Chalk, Chicken Feed, Christina, Christmas Tree, Crank, Crystal, Crystal Meth, Glass, Glue, Go-Fast, Ice, Meth, Methlies Quick, Poor Man’s Cocaine, Quartz, Shabu, Snot, Speed, Stove Top, Tina, Trash, Tweak, Upper, Uppers, Yaba, Yellow Bam
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