another "hey am I gonna pass?" question

I have a pre-employment test with Labcorp probably next week. I smoked on average, about once a day for the past few months. I stopped two weeks ago but smoked once last Thursday. The stuff we get is average, nothing super.
I am 6'6" tall and weigh 220lbs, with a 36" waist (and I am fairly fit and active) and I am over 40.
I bought two different tests, one was "At Home/At Home Drug Test Kit Marijuana" and the other is "First Check"
When I took the "At Home" brand, it said send to the lab for results. I haven't taken the "first check" test yet
I have trolled the boards and read about dillution and exercise and how none of the "cleaners" actually work.
Questions:
is there a brand that is best for at home testing?
do they really care about the color of your urine? (I ask this because all I drink is water and the occasional beer, I was pre-diabetic and overweight a year ago and have since lost over 80lbs and all my vitals are nearly perfect)
what are the odds of me passing the test next week?

Once I take the "First Check" test I will post my results.
any help/advice/calm my nerves, would be greatly appreciated

took the "First Check" test, had a nearly invisible/faint/hopeful line there. Hoping its a very visible line by Thursday. Will follow the dilution guidelines and post my results.
Do the testing facilities tell you pass or fail on the spot?

Quote:

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Originally Posted by shoebox

took the "First Check" test, had a nearly invisible/faint/hopeful line there. Hoping its a very visible line by Thursday. Will follow the dilution guidelines and post my results.
Do the testing facilities tell you pass or fail on the spot?

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Depends on the facility and the type of test. Some facilities are certified to conduct on-the-spot instant testing, while others have to send the sample to another facility for any analysis.

So 28 days later and I am still positive with the at home tests. Labcorp test is tomorrow. I am going to try dilution and hope that works.
Being positive after 28 days clean sucks.
Does Labcorp keep a running history of your tests? If I fail this one, will all prospective employers know? Will it affect my clearance at all? Any help?

Quote:

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Originally Posted by shoebox

So 28 days later and I am still positive with the at home tests. Labcorp test is tomorrow. I am going to try dilution and hope that works.
Being positive after 28 days clean sucks.
Does Labcorp keep a running history of your tests? If I fail this one, will all prospective employers know? Will it affect my clearance at all? Any help?

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The way I understand it, they keep your information on file but are not allowed to release it to a future employer. If you get another job interview, you will be screened separately.