When you need urine drug test results quickly, National Labs has the answer. Our drug testing facilities can return initial results in as little as 24 hours. Advanced LCMS confirmation testing on results takes 48 hours in most cases, occasionally 72 hours. Custom solutions are also available.

Why Aren't the Results Immediate?

To provide the most accurate results, we perform a number of tests on each urine sample we receive. The initial Enzyme Immunoassay (EIA) test includes checks for adulteration. This test gives us the initial results in under six hours. Once the Immunoassay is complete, we may run a confirmation panel. Confirmation testing is done via Liquid Chromatograph Mass Spectrometry. This process validates any initial negative or positive result you received and provides additional detail.

What is the Testing Process?

national labs drug testing process


A professional drug test is far more complicated than using a simple take-home kit. First, the collected urine sample must be sent to our lab. Then we test the specimen for the presence of legal and illegal drugs as well as their metabolites. Positive results and some edge cases are confirmed via liquid chromatography mass spectrometry.

At National Labs, we use multiple testing methods to ensure that our results are reliable and accurate. We pride ourselves on a quick turnaround time. 

What About Custom Solutions for Toxicology Screens?

We understand that waiting for results simply isn't viable in some environments. Our high-volume lab can work with you on custom solutions to your problems. Custom workflows and custom panels are two options.