Also why the lab results have no value next to Creatinine, pH and specific gravity?
The likely reason is because the $65 dollars only covered the testing of drug metabolites and not the validity tests.
Burnt Toast Reviewed by Burnt Toast on . 2 at home tests, 1 lab test... and I'm still scared. I have a pre-employment urine screening (hospital job) this coming Wednesday, at which day it will be exactly 20 days since I last smoked (shared a joint with a friend and another joint the following day). I'm overweight, have lots of fat cells and a slow metabolism. I took a Firstcheck test 5 days after smoking and tested negative (picture below). I then took a different at home drug test 3 days later and tested negative again (picture below). For both tests, I used the first void of the Rating: 5