Can You Donate Blood If You Smoke Vapes We all know smoking and vaping isn't great for your health. But it doesn't stop you from being a blood or plasma donor. Just Vaping Cannabis Produces Stronger Effects Than Smoking Cannabis For Infrequent Users Johns Hopkins Medicine Blood Donation While Using Medical Marijuana Dr. Green Relief Marijuana Doctors Severe bleeding linked to synthetic cannabinoid use Texas Poison Center Network Dos and Don'ts After Donating Blood SLMA Smoking or Vaping Cannabis and Cardiovascular Function: Is 9Tetrahydrocannabinol the Main Culprit? Journal of the American Heart Association