What is the blood type of a universal recipient?

The blood type of a universal recipient is AB+. Individuals with this blood type can receive blood from all other ABO blood types (A, B, AB, and O) without experiencing adverse reactions from antibodies present in the donor blood. This is because AB+ blood has both A and B antigens on the surface of the red blood cells, meaning the person does not have anti-A or anti-B antibodies in their plasma that could attack transfused red blood cells. Additionally, the presence of the Rh factor (indicated by the "+" sign) allows individuals with AB+ blood to receive Rh+ blood as well, making them universal recipients among both ABO and Rh blood groups.

This characteristic allows medical professionals significant flexibility in emergency situations where a blood transfusion might be necessary, as AB+ individuals can safely receive blood from nearly any donor.