Can a hair follicle test for meth be specific enough to detect a single use. Is there a specific name of a test that can.

Yes. It only takes one time and it can stay in the hair follicle for up to 3months.

I've been doing a lot of research and from what I have found, it is doubtful that a one time use will show up. So if you used once, like smoked one bowl, your probably okay. If a "one time use" to you is a 3 day binge... then you will not pass the test.