Faint THC drug lines are a normal indication of a negative result (passing). Also you can get an "actual measurement" if you get the right test - FirstCheck Home THC test. It comes with a specimen collection cup as part of the test. It has the normal i/a test built in to it. Then you can mail the collection cup into FirstCheck labs (it comes with everything you need to ship it) and they will anonymously run your sample through their GC/MS test and give you a quantitative measurement in nano grams. I highly recommend you perform this test using the first urination of the day and mail it off asap (usually takes a week to get results back if you use standard mail). This will tell you exactly where you stand. If you are passing, they'll just say it's <15ng. If not, you'll get the actual reading. My first failure was at 21ng. You can buy this test at your local drug store (I bought mine at CVS). You should read my thread "My u/a experience so far.." and "Observation about faint lines". They will probably answer a lot of your questions and quickly bring you up to speed. Below is a picture of the test you will need to buy if you want to be able to send it off for the complimentary GC/MS. The test is about $18.

http://img694.imageshack.us/img694/3...2213654114.jpg



PS: If you can't be confident you're clean in time for the test, consider subbing. See the sticky thread - SUBSTITUTION: tips, tricks and guidelines
deandavidmartin Reviewed by deandavidmartin on . Pre-employment medical Hi guys, Apologies if most of these questions have been asked already (I'm pretty certain they will have) but I just want to be sure as my circumstances or a bit different to the usual drugs test. I've been a HEAVY user for about 3/4 years (couple of times a day at least) but have been clean for 27 days now. I'm 5"11' but very skinny (I only weigh 125lbs) and have been running and working out regularly to try and clear my system a bit. I have a pre-employment medical for a job coming up Rating: 5