Can a blood drug test determine how much of my.kolonopin and vyvanse (lisdexamfetamine) i've taken all month long or is there a.detection period? why not do a urine test

Yes: If you are taking your medicine on a consistent basis, a Steady State Serum or Blood test should provide a pretty good indication of your adherence to directions. Urine Drug testing only gives a qualitative indication of your medication taking history-in other words-yes you are taking or no you're not taking it. The blood level is an instant snapshot of your blood level so it is difficult to fool.