5 doctors weighed in:

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

5 doctors weighed in
Dr. Horacio Capote
Psychiatry
4 doctors agree

In brief: 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". ;).

In brief: 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". ;).
Dr. Horacio Capote
Dr. Horacio Capote
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