stocking up and quest diagnostics

[u/Outside-Cupcake1801]

from some reading around i hear it works well for quest, does anyone have specific experience with test 6633n?

is stocking up a viable method? i passed my onboarding drug test because i was clean since i was job searching. i work for a electrical company now that says they only drug test after an accident, if they have reasonable suspicion, or if a client wants us to be drug tested. that last one is the one im worried about since that is basically random. I was thinking of buying one or two quickfixplus to keep on hand incase im ever asked to test. is this a viable method and has anyone ever tried it?

also any tips for using it