Did you pass the home test with the first urination of the day? If so, then you will have no problem passing the lab test. The faintness of a line has no affect on the validity of the test. Even synthetic urine will produce a faint line. The GC/MS will not be used first in the testing process. This test is only used to confirm a positive test result after the initial drug screen, which will be an Immunoassay. The Immunoassay is practically the same as any home dip test or cup test that you can buy at you local pharmacy or Walmart.

If you didn't use the first void of the day, then I would suggest picking up another home test and doing so.
Deige Reviewed by Deige on . Passing urine test after 95 days Hey, I have a urine test coming up on Oct 6th which will be exactly 95 days since i last smoked. I did a home test on Aug 1st and passed with a faint line and a another home test on Sept 1st which I also passed with faint line. But after reading some of the info in the forums I am worried that the lab test is more accurate than the home tests, ie. if its a GC MS will I pass as these seem to be more accurate ?? I weigh 150lbs and am 6ft tall, I was smoking almost everyday but it was dark Rating: 5