What's an instant drug test?
An instant drug test is exactly as its name implies—you get the results right away, at the point where it's collected, usually within a few minutes. It's what we call an immunoassay screening; its purpose is to detect any presence of that category of drugs in the specimen. The result is either negative (it's not present) or non-negative (it is present). An instant drug test can't officially give a positive result