Transfusion therapy is done with crystalloid fluids and colloid fluids. Crystalliods are the IV fluids more routinely used for patients. Colloids are use more for specific situations and are a fluid product with larger molecules. Some colloids are plasma, Vetstarch, Hetastarch, red blood cells, and whole blood.
We maintain a supply of commercially formulated colloids and plasma for pets in case of emergency situations that require such transfusion products. If whole blood is required as a transfusion the blood is collected from donor pets that live with their owners. If red blood cells are used they are purchased from blood product companies.
An ample supply of plasma for dogs and cats is maintained for transfusions when necessary. All blood products are carefully screened for disease.