question: Hello,I believe that my son has been using meth-amphetamine for approx 6 months now,and i would like to take him in for a drug test. I have not yet decided whetherto get a hair, urine or blood test, but because he is legally responsible, imust have his consent to test him, therefore, i am wondering if there is anywayhe could cheat the test that i should watch for, or how soon i should get itdone. I have inquired about this with a couple physicians, and they have eachtold me different opinions, but i would also like to know how long it wouldtakehim to clean his system before the test. he is 5'10, about 125lbs, hashypoglycemia, is highly active with a high metabolism, and is 18yrs old. ThankyouConcerned Parent