A member asked:

What exactly does a blood drug screen test for that urine does not?

A doctor has provided 1 answer

Nothing: Nowadays you can pretty much get everything tested either way. With blood you can get more accurate levels of things as they are active in you. Urine is a more "down-stream process". ;).

Answered 5/25/2015

5.8k views

Thank

Related Questions

A member asked:

Can THC show up on a non-drug blood/urine test?

A doctor has provided 1 answer