Blood donation put somebody through the mill?

i was just wondering.. if you donate blood.. and there is something wrong beside it and you had no idea.. would they tell you? cus what if someone is a regular donor and kept donating blood that wouldve be thrown away? that would suck haha.
Answers:
yes they will.
They test your blood to see if it is ok, other wise you are not allowed.yes they will relate you if you have something they have to.
Yes they would tell you lol
I thought that they prick your finger and see the blood type and if its healthy, then in fact start the tons of blood part! haha
Yes, they notify the health bureau and they tell you.
All blood is screened, and yes they would let you know.
Yes, you will definitely be told .
WHY? They know that you are donating blood out of the goodness of your heart. Good deeds reap good deeds contained by return.

If there was only a minor point wrong with your blood, they can take that away and use the rest of your blood.

The need for blood donations is acute and even desperate.

Nothing get "thrown out or rejected".
Blood is composed of several "factors"

Rest assured that the other factors are all used.

Red cells- this is what everybody imagines a blood donation is adjectives about.

Yet you can donate platelets, plasma, factors, and more.

Yes they will tell you if something is wrong near you and tell you your options.

Most of the time your blood will be rejected is if you have HIV/Aids, syphillis,or requirement your own blood yourself (anemia)
yeah they would
I am pretty sure they would. But you should probably get a blood test earlier you donate blood.
yea they will contact you

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