Can Secondhand Smoke From Crack Cocaine Cause Me to Fail a Drug Test
9 Weird Ways You Can Test Positive for Drugs
Introduction
At that place are times in life when you lot just accept to pee into a cup. For example, yous might need to take a drug test before you lot start a new job. But these tests aren't foolproof: A number of harmless, everyday substances can trigger a false-positive result for drugs. Here's a wait at nine substances that tin can give y'all an odd positive result for illegal drugs.
Coca tea
Drinking coca tea could lead to a false-positive consequence for cocaine. The tea is pop in Due south America and is made from the leaves of the coca establish, the same source from which cocaine is derived. In a 2006 written report, five people drank coca tea before undergoing a drug exam. All of the participants tested positive for cocaine metabolites 2 hours later on consuming the tea, and three participants still tested positive for cocaine afterwards 36 hours. The researchers concluded that "healthcare professionals should consider a history of coca tea ingestion when interpreting urine toxicology results."
Cold medications
Some over-the-counter cold medications incorporate ingredients that could lead to a false-positive result for amphetamines. For example, the ingredient brompheniramine, which is an antihistamine in some cold and allergy medications, tin can interfere with the test for methamphetamine, leading to simulated-positive results, according to a 2010 review written report.
And in the past, use of the nasal decongestant Vick'southward Inhaler led to false positives for amphetamines, according to a 2008 review study. Vick's inhaler contains levomethamphetamine, which is a chemic "mirror epitome" of methamphetamine, the authors of that review wrote. Even so, newer drug tests tin can distinguish between methamphetamine and the chemical in Vick'southward inhaler, so the cold medication no longer triggers a simulated positive, the review said.
Secondhand smoke from marijuana
In extreme cases, being in a room with someone who is smoking marijuana can lead to a positive result on a marijuana examination, according to a 2022 study. In that inquiry, six people smoked marijuana in a sealed bedroom, while vi nonsmokers sabbatum next to them. Later on i hour, several of the nonsmokers tested positive for marijuana in sensitive tests that could detect tetrahydrocannabinol, or THC (the active ingredient in marijuana), at a concentration of twenty to 50 nanograms per milliliter.
The researchers ended, "These results demonstrate that extreme cannabis smoke exposure can produce positive urine tests at usually utilized cutoff concentrations." However, the researchers noted that these positive tests in real-world settings are likely to be rare, because testing would need to occur within hours of the exposure, and nonsmokers would likely be aware that they had been exposed to secondhand marijuana smoke.
Antibiotics
Certain antibiotics, including rifampin and fluoroquinolones, tin can lead to false-positive results for opiates. In one case, reported in 2002, a 7-twelvemonth-old boy in Lebanon who visited the emergency room tested positive for opiates. However, it was later determined that the rifampin he was taking interfered with his drug test.
Baby soap
Sure soaps used in hospitals to launder babies soon after birth may cause the infants to exam positive for marijuana on some newborn screening tests, according to a 2012 report. (Such tests are done to determine if a mother was using drugs while pregnant.) Wellness intendance workers figured out that babies who are done with these soaps — which include Johnson & Johnson'south Head-to-Toe Baby Wash, J&J Bedtime Bath, CVS Night-Time Baby Bath, Aveeno Soothing Relief Creamy Launder and Aveeno Wash Shampoo — gave a positive result on a urine drug screening exam for THC, the active compound in marijuana.
The researchers in that study said they aren't certain why the soaps cause a false positive. It could be that some of the compounds in the soap have a structure that is partly similar to THC, or it could be that chemicals in the lather alter the manner the examination works, the researchers said. Every bit for how the soap got into the urine sample, the researchers doubtable that some residual lather on the babies' pare done off into the kid's urine sample.
Ibuprofen
Taking nonsteroidal anti-inflammatory drugs, such as ibuprofen, can, in rare cases, lead to a false-positive result for several drugs. In a study conducted in 1990, threescore people took ibuprofen at several dissimilar doses (a unmarried dose of 400 mg per day, iii 200-mg doses a day or three 400-mg doses per solar day, depending on which experimental group they were in). I patient taking the highest dose of ibuprofen (1,200 mg per day) tested positive for cannabinoid, a compound in marijuana. Another patient tested positive for barbiturates, which are used in anti-anxiety drugs or sleep medications. The results "demonstrate the pocket-size likelihood of a faux-positive [test]" after taking ibuprofen, the researchers concluded.
Tonic water
Tonic water contains small amounts of quinine, a drug used to care for malaria. Quinine is also sometimes mixed with street drugs, and then information technology tin can be an indicator of illegal drug use. In a 1989 study, researchers at Brown Academy in Rhode Island reported that a positive effect on a urine exam for quinine resulted from the consumption of tonic h2o in a mixed drink.
HIV medication
An antiviral medication used to care for HIV tin can also cause people to exam positive for marijuana. For case, in 2006, researchers reported interesting findings from a study of 24 people who took the HIV medication efavirenz (make proper name Sustiva). At the beginning of the report, all of the participants tested negative for THC, just subsequently taking efavirenz, they all tested positive. Researchers said that efavirenz may interfere with the way the test works.
Poppy seeds
Poppy seeds naturally contain the compounds morphine and codeine, and and so consumption of some products with poppy seeds tin can trigger imitation positives results for these drugs. In a 1987 study, five members of a lab baked cookies containing about i teaspoon (five milliliters) of a poppy-seed filling that they bought from the grocery shop. Two hours afterward eating several cookies, all of the lab members tested positive for opiates. The concentration of the drug was greater than 300 ng/mL, which was the minimum cutoff used past the examination.
In 1998, the Section of Health and Homo Services changed the cutoff to 2,000 ng/mL in order to avoid false-positive results from eating poppy seeds, according to a 2008 review study. Nevertheless, nigh laboratories keep to use lower cutoffs, the researchers of that written report said.
Rachael has been with Live Science since 2010. She has a chief's degree in journalism from New York Academy'southward Scientific discipline, Health and Environmental Reporting Program. She likewise holds a B.S. in molecular biology and an 1000.S. in biology from the University of California, San Diego. Her work has appeared in Scienceline, The Washington Post and Scientific American.
Source: https://www.livescience.com/56921-weird-ways-you-can-test-positive-for-drugs.html
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