Final answer:
It is false that salvaged blood always has a higher viability than allogenic (transfused) blood.
Step-by-step explanation:
The statement that salvaged blood has a higher viability than allogenic (transfused) blood is generally considered to be false.
Salvaged blood refers to blood that is collected and re-infused during the same surgical procedure, typically with a cell saver device. While this blood is fresh and closely matched to the patient's own physiology, it might not always be superior in terms of viability compared to well-preserved, typed, and cross-matched allogenic blood from a blood bank, which has a known shelf life and undergoes rigorous testing for pathogens and compatibility.
Allogeneic blood transfusion involves the risk of immune system reactions and transmission of blood-borne diseases, which is why thorough compatibility testing is crucial to ensure the patient receives a transfusion with matching ABO blood type. A transfusion with an incompatible ABO blood type may lead to a hemolytic transfusion reaction (HTR), which can be potentially lethal.