I have done Quest many times and I think most of Your questions might be answered in the link below...

http://boards.cannabis.com/drug-test...-question.html

4.2 is the newest version but 4.0 works fine
jeffman Reviewed by jeffman on . First time ever testing and subbing Hi everyone, HAPPY 4TH OF JULY! I am new to this site (bummed I did not discover it long ago) and have been amazed with all the stuff I have been reading on this forum about drug testing. Basically, I have been a smoker pretty much everyday for the last 8 years...I stopped months ago but am still getting faint lines onhome tests and that makes me verrrrrry uncomfortable. I am getting a job at a hospital and Knew ahead of time that they drug test and possiby random test. I really need Rating: 5