phats: Our dog needed some serius surgery recently & my wife (still in) was very concerned that if he needed a blood transfusion she thought this would constitute a misuse of blood. I was stunned as never heard of this.
Well, your wife doesn't need to worry if the vet has some Oxyglobin hanging around.
Oxyglobin is an HBOC (hemoglobin based oxygen carrier) derived from cow's blood that is pretty much exactly the same as Hemopure. They are both made by the same company.
The difference between the two products is that Oxyglobin has been approved by the FDA for use in animals but Hemopure does not have approval for use in humans (unless you are a JW...then you can get the same blood product that is used for dogs).
JWs (and their dogs) can use cow's blood. And, the dog's blood product has been approved by the FDA.