I also thought that both of these places do an immunoassay test for the first initial test, which is a test that only tests for a positive or negative reading. This is done by testing the presence of certain antibodies in urine, and is a "strip" test if you will, very similar to the ones you buy...
Have you found that even if you have the "faint line" on home tests, you also pass the lab drug test? I have heard somewhat mixed results. It seems that most people that pass the home test, even with a faint line, also pass the lab test. I have also heard of some people that have passed the home...
I understand that if you fail the initial test at either of these locations (generally at 50 ng cutoff limit) they are sent off for a second test to verify the sample is positive.
The question I have is, during the first initial test (at 50 ng), do these corporations use a strip test, that...