I'll play devil's advocate...
true, the mosaic law code prohibited the eating of blood. But Jesus fulfilled the law covenant thus wiping out all the laws previously set. But then later, (through God's spirit, of course wink wink) the abstaining of blood was again brought to followers of Christ. So between the couple of scriptures in the OT and the one in the NT...you have all the evidence you need to prove that Joe Hober doesn't want you eating or transfusing blood. Simple, really...