Confirming any non negative results with a workplace chain of custody lab drug test
We have lots of drug and alcohol test kits for workplace drug screening on this website which you can purchase online using a debit or credit card.
When you are buying them it is important to consider what you will do with your non-negative results. We recommend that you also buy a workplace chain of custody lab drug test pack as this enable you to get a confirmation test with paperwork done immediately following the non-negative result. If your screening test was a urine test you may be able to use the same sample if you have followed the full chain of custody drug testing procedures. If the screening test was a saliva test you will need to obtain a urine sample from the person being tested.
A delay of even a couple of days in obtaining this urine sample for confirmation will mean that in all likelihood the lab test will be negative as most drugs can only be detected in urine for up to 3-4 days following ingestion and some of them even sooner. Cannabis can be the exception to this as in certain cases it can test positive for up to 30 days although this is unusual.
If you need any help or advice choosing the right drug testing kits for your needs then contact our customer services team for advice, who will be happy to assist and guide you.