Nasal Swab Test
There is no preparation required for the test. All you need to do is prepare yourself and make sure there are no ointments or creams applied to your nasal cavities, as they can affect the sample integrity.
As much as possible, do not smoke, vape, eat, or drink anything, an hour before your nose swab test.
Mouth Swab Test
If you’re opting for a noninvasive method of drug testing that is proven to be very easy and convenient to carry out, a mouth swab drug test is for you. This type of test requires very little preparation. All you have to do is to avoid eating or drinking anything 10 minutes prior to the test.