![]() The peak effect of marijuana administered by smoking occurs in 20-30 minutes and the duration is 90-120 minutes after one cigarette. Long-term, relatively heavy use may be associated with behavioral disorders. They may also experience transient episodes of confusion and anxiety. Users have impaired short term memory and slow learning. When smoked or orally administered, THC produces euphoric effects. THC (∆9-tetrahydrocannabinol) is the primary active ingredient in cannabis (marijuana). The One Step Drug Screen Test Card yields a positive result when the Methamphetamine in urine exceeds 1,000 ng/mL. Methamphetamine is generally detectable in the urine for 3-5 days, depending on urine pH level. 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 delaminated 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 is an addictive stimulant drug that strongly activates certain systems in the brain. The One Step Drug Screen Test Card is a lateral flow chromatographic immunoassay for the qualitative detection of multiple drugs such as Methamphetamine Marijuana(THC) drug metabolites in urine at the following cut-off concentrations:
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