Why can you not give blood if you have snorted drugs?

it says it in the form i got from them

Answers:
I read on a site that you should wait 12 mos to give if you have used Cocaine or other street drugs. This is the info I found:
Wait 12 months after using cocaine or other street drugs through your nose before attempting to donate blood. This requirement is related to concerns about hepatitis and HIV. Learn more about hepatitis and blood donation.
because some of the drug residue could remain in the blood, causing problems for the person needing blood?
just a guess.
Cos snorting or injecting makes no difference the drugs go straight to your blood stream.duhhhh
because something may go wrong with the person whom you are giving the blood to.
I think it depends on what drugs you did and how long ago you did them. If something is going to affect the quality of the blood in some way, obviously it's no good to anyone. For example I can't give blood as I've had Hepititus A and Typhoid in the past, so my blood for others is not really healthy enough.
Because I wouldn't want your doped up blood pumped into my veins.

No offense.
cuz i believe that it will be in ur blood and u would be passing on drugged blood to someone else!
drug abusers shouldn't be allowed to give blood at all regardless if you have snorted them or just orally taken the drugs.
basically because for any drug to have an effect it needs to enter the blod stream. drugs snorted will be absorbed through the mucous membranes in your nose and enter the blood that way. Same principle as when you smoke the chemicals are also absorbed into the blood.
Why would you want to pass your contaminated blood to someone who needs CLEAN, HEALTHY BLOOD !!!

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