I'm pretty sure thc is out of your blood in a couple of days or less anyway..I'll check.

Edit: Only a few hours according to this site.
http://www.marijuanapassion.com/How-...ur-System.html

So like..just don't smoke the day before? Assuming you're having to donate blood to buy it anyway, I'm figuring you wouldn't have any before a test.

second edit: You are a bitch.
phoenix Reviewed by phoenix on . "Donating" Plasma Alright, me and a couple of my friends have an idea(to buy more weed) but I have a question. We're going to go as a group and donate plasma and receive $30 per person. I've been researching plasma donation on the web, and the guides tell you that you'll be asked about medical history, allergies, any disabilities, etc... but they also say you will be screened for drugs :eek: Does this mean they'll test my blood for ALL major types of illegal drugs? Has anyone actually donated plasma Rating: 5