Most of the drug testing in the work place is drug specific and drug metabolite specific. Most of the commonly used drugs are chemically different from the other metabolites. Therefore, many employees that tests positive cannot whine away reporting that the false positive is due to interfering substances. Even if there are interfering substances there are unique methods to arrive at the metabolite behind the positive result by high level testing.

Most of the illegal drugs of abuse have a detection threshold for the immunoassays that are used in test strips. The detection threshold is those that are approved as a Standard by SAMHSA, WHO and NIDA. If the drug concentration levels for drug test work is going to be below the cut off range the test will not show positive. Such negatives might not be that the donor is innocent, but it might be that the drug testing at work is done either too early or too late of the drug detection times; however, the cut of levels might be periodically renewed or might vary slightly on the basis of the reagents used for the immunoassay for different products. The reference range and cut off levels might vary slightly based on the method and reagents used in every immunoassay. Similarly, synthetic opiates and non-synthetic opiates have different detection levels.

Drug service testing workplace is fairly simple to use and economic when the employer chooses to use the multiple drug detection system where it is possible to test for multiple drugs like THC, Barbiturates, Benzodiazepines, Marijuana, Opiates, Cocaine, PCP, Methamphetamines, Methadone, Amphetamines, Oxycodone, ecstasy and lot more in one simple test strip. With just one test strip it is possible to detect a majority of prescription drugs and illicit drugs; however, it is important that the test will have to be done within the detection period of the drug. In some cases regardless of the employee having abused a bit, it might show up to be negative possibly because, the test has been done much early before the body did process the drug or in some cases, it might have been done very late when the metabolites start depleting from the system.

Drug testing in the workplace is 98% accurate. In many cases the target drug will be unknown until the higher levels of confirmatory and quantitative tests are done; however the drug test strips are reliable on their preliminary confirmations and can be counted on to avoid tedious non-waived tests for all employees. The drug tests strips enable that only positive candidates will be tested for confirmation, making the system, ethical, economical and sensible.

For any kind of help regarding choosing drug test methods for workplace feel free to contact the help desk of drugteststrips.com at info@drugteststrips.com or at toll free: 1 (866) 937-8483 and the consultations are absolutely free.