What is the maximum blood transfusion quantity?

The maximum amount of blood that can be safely transfused depends on the patient's age, weight, and medical condition. In general, the maximum single transfusion volume is 10 mL/kg of body weight. For a 70 kg adult, this would be a maximum of 700 mL of blood. However, this amount can be increased in certain cases, such as during surgery or when a patient is critically ill. In these cases, the maximum transfusion volume may be as high as 15 mL/kg of body weight.