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These compounds are known false positives for cocaine. Lidocaine is commonly used to adulterate or mimic cocaine due to its local anaesthetic effect. If the procedure is adjusted to basify the sample rather than acidifying it, the test can be used to test for ketamine hydrochloride. [7]
According to statistics by the National Institute for Health and Welfare in Finland, of positive results for cannabis, cocaine and opioids, two-thirds were false compared to a blood test. As positive test results have been used as sufficient grounds for a ban on driving, the Finnish Parliamentary Ombudsman issued a statement condemning the ...
Urine drug testing is one of the most common testing methods used. The enzyme-multiplied immune test is the most frequently used urinalysis. Complaints have been made about the relatively high rates of false positives using this test. [18] Urine drug tests screen the urine for the presence of a parent drug or its metabolites.
JSO stopped using cocaine field tests Wednesday after finding they generate false-positives for common over-the-counter medications. Jacksonville Sheriff’s Office finds cocaine testing kits ...
New York’s prison system unfairly punished more than 2,000 prisoners after tests of suspected contraband substances falsely tested positive for drugs, according to a report released Thursday.
Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.
A Tennessee criminal court judge was sent to jail Wednesday after her bond was revoked for testing positive for cocaine while she was out of custody pending a trial on charges of coercion of a ...
The substances must be specific. It is the most common drug screening technique. Using the targeted drug the test will tell you if it is positive or negative to that drug. There can be 4 results when taking the test. Those results can be a true-positive, a false-negative, a false-positive, and a true-negative. [14]
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