I quit smoking 22 days ago, I have taken a few first check 50 n/g test. The control line is solid red and on the drug part, there is a line but very faint on one and the other its more filled out but only half the line is solid and other side is faint..concentra cut off is 50 n/g i believe.. the test that is faint was taken this morning after my first pee off the day, i managed to pee a little more 15 mins later just to meet the min Amount