When is blood transfusion necessary in surgical procedures?

Blood transfusion is necessary during surgical procedures when the patient has lost a significant amount of blood and cannot maintain stable vital signs without receiving additional blood. This can occur due to various reasons, such as trauma, extensive surgeries, or chronic medical conditions. In these cases, a blood transfusion can help replace the lost blood and restore the patient's normal blood volume and oxygen-carrying capacity. However, transfusions also carry some risks and potential complications, which medical professionals will carefully consider before performing the procedure.

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