Wow, that's alot of questions just to donate blood. I know i'm not able to becuz I have tattoos tho.
Atleast that's how it is here, dunno about other places.
Here you don't qualify if:
- You've been sick in the last month
- Had new sex partners in the last month
- Have a disease obviously
- Medical condition so that donating could harm you
- You're homosexual
- You're underage, D'uh
- New injuries, piercing, tattoos etc.
I think that's about it.