The result of drug test may be invalid in some cases. The drawback of these drug tests is that you lose your freedom and you may lose your job.
Effectiveness
The Disease Control Center tested a lab that sent a known amount of drug. The lab was unable to detect the drug present in the sample. Although the method and reliability were improved in the lab, the problem still continues.
The 2 Vegel breakfast
Sample urine was positive for narcotics by RIA, EMIT. GC / MS identified morphine content. Individuals rejected opiate abuse and inquiries were made. As a result of the investigation, a meal consisting of two bagels of Bagel, a burger king's hamburger and a university snack bar, was revealed on the night prior to taking the specimen. The individual seemed quite normal. They came to the conclusion that crushing of a few poppy seeds used as decorations on bagels resulted in a positive immunoassay response.
Hemp seed food
Laboratory studies revealed that cookies made from Cannabis sativa seeds (hemp seeds) cause cannabis positive urinalysis. Although their lineage is low, they may become positive after ingestion. The results of positive marijuana were obtained for volunteers who ate hemp cookies.
human error
The majority of human errors are caused by lack of control, lack of personnel, poor equipment maintenance, glassware contamination of chemical samples, and so on. Inspection monitoring is done at the laboratory to confirm that there are no errors. Machines are as reliable as people operate them.
Required regulations
Errors are unavoidable for random or large tests with no probable cause. Cause of error in test:
- Inappropriate experiment procedure
- Inadvertent switching of samples
- The document is lost or damaged.
- Passive inhalation
- Interaction with other legal drugs
- Tampering with samples
- Unknown reason
false positive
This is reflected in the positive result for the sample without drug. False positives may occur due to inspection methods or equipment contamination. There is great personal and social significance in positive drug tests such as job aptitude assessment, pre-job posting, promotion candidate and so on. Usually, after screening test, using different methodology.
False positives or Opiates
The opiate product is the most difficult for those who interpret the results of drug screening in urine. The majority of opiate positives are due to poppy seeds and prescription drugs. Studies reveal that certain drugs are found after poppy seed ingestion. Because false positives confused multiple employees, life, Govt. We have revised mandatory guidelines for the Federal Office of Pharmaceutical Inspection program by increasing opiatet cutoff and confirmation levels.
Many errors
An error may occur anywhere in the process of drug testing. Employees will be guinea pigs used to develop accurate tests. Problems such as inspector's performance, flawed conformation, legal action, carelessness, etc. appear almost instantly at soldier narcotic examinations.
Cross reactivity
It was studied by Allen and Stiles. They tested counter-drugs using 161 prescriptions and EMIT and found that 65 prescriptions and counter products or more showed some cross-reactivity including values above cut-off. Most of the positives require concentrations not achievable in human urine and do not present practical problems. If you are using prescription medication or counter medication before drug test, you can conduct positive examination. In particular, those containing synthetic compounds such as phenylpropanolamine have been reported to be positive by amphetamine tests, and may also cause false positives in the methhedrine test. According to some sources, if the subject drank a lot of tea, the cocaine EMIT test asserted that it could issue a positive. If you are preparing for counter pain or menstrual cramps, you can make a positive test and you will find that you have to prove you are not a drug abuser. Therefore, the interaction is not solved, it is a problem that continues to be misunderstood. So, you should be prepared wisely, get informed, preventive and pass drug tests.
