The American Red Cross has this on their website:
Q: I'm a heavy cannabis user. Can a transfusion recipient fail a drug test if they receive my blood?
A: No.
They don't care if you're high as a kite as long as it doesn't impair your memory or comprehension (probably for legal reasons).
The American Red Cross has this on their website:
They don't care if you're high as a kite as long as it doesn't impair your memory or comprehension (probably for legal reasons).