Yes, here it's the same, you can't be paid for donating blood.
I suppose we could draw the line at some other point (not for organs, yes for blood) but what they did here was forbid payment for any donation.
Well, you probably take your blood every once in a while, don't you?
I mean, I can go for a yearly check-up (which I don't

) and ask for my blood to be tested, just because I want to make sure I'm fine.
At some point in my life I said to the doctor "Oh, since we are doing this, can be ask about the blood type?" and he said yes, ticked another box in the petition form and that was all.
The lab just checks for it with the same blood sample.