The Cannabinoids are what's in your blood, not delta-9-tetrahydrocannabinol, although the cannabinoids that are tested for are refered to as THC.

Depends on many factors - how long you've been smoking, how much and so on.

What's the bloodtest for, if you dont mind me asking?

If it's not for a drug test, you have NOTHING to worry about.
LIP Reviewed by LIP on . How long does weed stay in your blood stream? I might get a blood test soon, how long does weed stay in your blood stream??? thanks Rating: 5