drug testing

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"Positive" urine testing for Cannabis is associated with increased risk of traffic crashes Research, car crashes, drug testing

bstract

Although recent Cannabis use is widely reported to be associated with drug-related traffic accidents, the evidence that Cannabis users show an increased risk of being involved in road crashes is still not unequivocally proved. The purpose of the present work is to provide an objective assessment of this hypothesis, by comparing the frequency of occurrence of positive urine analyses in drivers involved in traffic accidents (n = 1406) with that observed in a control population undergoing mandatory urine drug testing (n = 1953). Urine analyses for drugs of abuse were performed by screening immunometric techniques followed by confirmation with UHPLC-QQQ MS, adopting a cut-off concentration for THC-COOH of 15 ng/mL. A case was classified as "positive" when a driver admitted to hospital for road traffic injuries showed urine concentrations of THC-COOH higher than the cut-off. All samples showing positive results for any other controlled drug in urine or blood alcohol concentrations >0.5 mg/mL were excluded from the study. Subjects positive to THC-COOH, and negative to all the other tested substances were 116 in Group 1 (8.2%) and 16 in Group 2 (0.8%). Subjects resulting negative to any tested substances were 1290 in Group 1 and 1937 in Group 2. The frequency of THC-COOH detection in the two groups was compared by using the "chi square" test, which resulted = 119.57, i.e. highly significant (P <<< 0.01). The Odds Ratio of the two groups was =10.88, showing a high degree of association between the presence of THC-COOH in urine and the occurrence of traffic accidents (P < 0.0001). The presented data, proving a high degree of association between Cannabis use and the occurrence of traffic accidents with injuries of the driver, support the use of urine testing for Cannabis in the procedures for the issuing of the driving licence, particularly in the case of subjects formerly or presently using Cannabis. This finding looks even more relevant in the present times, because of the increasing success of the policies of legalization of Cannabis for medical and non-medical purposes.

 

The AAA Position: Marijuana’s Effect on Driving AAA, postition statement, statement, driving, drugged driving, Impairment, car crashes, Fatalities, drug testing

The AAA Foundation for Traffic Safety analyzed cannabis use by drivers in one of those states, Washington, and found that the proportion of drivers involved in fatal crashes who had recently used marijuana more than doubled after Washington legalized the drug for recreational use. In addition, there’s currently no easy way to test whether a driver is impaired by marijuana: Unlike alcohol, it can’t be determined by breath or blood tests.

Testing Drivers for Evidence of Marijuana Use is Difficult driving, drugged driving, drug testing

“It’s really difficult to document drugged driving in a relevant way, [because of] the simple fact that THC is fat soluble,” said Margaret Haney, a neurobiologist at Columbia University. “That makes it absorbed in a very different way and much more difficult to relate behavior to, say, [blood] levels of THC or develop a breathalyzer.”

Employers Grapple with Heroin Epidemic Employer, drug testing, drug free workplace

An employer should have a written drug testing policy that includes:  

  • Descriptions of the types of tests that employees can expect to be asked to take.
  • Descriptions of the testing procedures. 
  • The disciplinary consequences for violating the drug testing policy.

 

What level of THC in blood causes driving impairment? driving, impaired, drug testing

Let us provide a rational answer to a nonsensical question. It is a nonsensical question because blood is never impaired by THC. Never. Alcohol doesn’t impair blood either. These drugs only impair the brain, not the blood.

Workforce Drug Test Positivity Rate Increases for the First Time in 10 Years, Driven by Marijuana and Amphetamines, Finds Quest Diagnostics Drug Testing Index™ Analysis of Employment Drug Tests Colorado and Washington experience surges in marijuana test workplace, Business, drug testing
Workers' Comp Must Cover Medical Marijuana Business, workplace, drug testing, insurance

Is this what Floridians want?

Colorado's High Burns Loews Colorado, Employer, drug testing

Lowe’s doesn’t want people acutely or sub-acutely under the influence of marijuana operating forklifts, using circular saws, cutting ceramic tiles, driving company trucks — or cleaning its toilets. And no, the company isn’t interested in lowering its hiring standards, either, said Amy, the friendly and always-approachable manager at my favorite Lowe’s store....  “We’re trying to find the best people to hire, and it’s really hard these days,” Amy the manager told me....However, one thing is certain: Lowe’s isn’t the only Colorado employer struggling to find drug-free workers to fill decent jobs.

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