Quote Originally Posted by smthrsd
Quick background
5 foot 10 195 pounds
2 to 3 time week user for 10 plus years.
Company got bought and newco requires urine sample to stay on.
Been clean for 17 days. test will be on day 24
Water exercise b-2 daily.

3 at hoem tests very faint line on days 7 10 13 via first First Check Marijuana home tests

Sent in sample of day day 10 to First check for lab result. Logged in after 2 days and result is negative . They use the GC/MS test.

Still have a week to go beofre really thing. Is the First check lab result negative enough to make me relax a bit? I still plan to lite dillute on day of test.
Labs only use GC\MS to confirm a positive result, standard testing in a lab will be Immunoassay. If you have passed your home test kits you will be fine to pass the lab test.