![]() Integrity testing, to determine creatinine & specific gravity levels, which detect attempts to dilute the specimen.Temperature strips, which assure the sample temperature falls within the acceptable range at the time of collection.Chain of Custody procedures and specific protocols that track the specimen from the moment of collection through the processing and storage procedure.Some of the procedures that have been instituted to determine intentional attempts at “beating” a drug screen are: The science of drug testing has progressed significantly in recent years. Yes, but the odds are long and getting longer all the time. The claim of passive inhalation triggering a positive test result is easily rejected. In addition, the GC/MS confirmation cutoff levels allow for these circumstances. However, studies have shown that the exposure would have had to be so constant and prolonged, and in such a confined space, as to represent an absurd scenario. Some employees have claimed that passive inhalation of marijuana smoke caused their positive test results. are easily distinguishable in the laboratory.are not detected at sufficient levels or.Most of the popular stories about what triggers a ‘false positive’ – such as what you eat or drink, what cosmetics you use, or what over-the-counter medicines you take – are based on misconceptions. With the use of this two-step process and professional, accredited laboratories to eliminate human error in the process, there should be no concern regarding the accuracy of drug tests. The accuracy of the GC/MS confirmatory test is virtually 100% from a scientific standpoint. The accuracy of the initial drug screen, the immunoassay test, ranges between 92% – 98%. Only if both portions of the divided specimen show up positive is it considered a positive result by the testing lab. The second – or confirmation – test uses gas chromatography/mass spectrometry (GC/MS). If the results of that test are positive, then a second test on a portion of the remaining specimen is conducted using a different chemical process. Most laboratories use a two-step process in which each urine sample is divided and a portion is tested using a relatively simple, inexpensive, and accurate test (using enzyme immunoassay technology). To learn more about drug testing, visit our website.Absolutely. ![]() Weigh the pros and cons of instant drug and alcohol testing. In the end, accurately and reliably screening job applicants and employees to deter workplace alcohol and drug use remains paramount. Laboratory certifications are in place to ensure that our processes, instrumentation, results, and personnel adhere to the highest standards of quality. Therefore, it is not a matter of choosing the single best drug and alcohol testing method, but rather selecting a method or combination of methods that best fits your company’s needs. Susceptibility to donor adulteration or cheatingĪt Quest Diagnostics, our drug testing methodology is sound. ![]() Added responsibility of collecting and interpreting test results.State laws where your company conducts business.Overall objectives of your substance abuse program.Although convenience and time are important variables in any program, it’s critical to consider all of the criteria and complexities before making a choice on testing method. One of four SAMHSA-certified Quest Diagnostics drug-testing laboratories can retest the rapid test specimen to determine if drugs are present.Įmployers tend to choose instant testing when the fast turnaround time of drug test results is a key requirement for their program. The lab will re-test the specimen to determine if drugs or alcohol are present and report a final result. If an instant test specimen screens non-negative, it is sent to the laboratory for confirmatory testing. However, some employers prefer that the test is collected and interpreted by a trained drug testing technician or collector at a brick and mortar collection site. An instant test can be performed on-site at a place of business or in the field. ![]() This POCT result may or may not be enough to reflect a final test result for an employer. A POCT collection begins with a test administrator using a portable device to screen urine or oral fluid, with the device typically yields a result within minutes. POCT is a common acronym in our industry that stands for point of collection test - an instant or rapid drug or alcohol test. ![]()
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