MICROANATOMY

Detailed explanation-1: -What Is A Universal Blood Donor? Universal donors are those with an O negative blood type. Why? O negative blood can be used in transfusions for any blood type.

Detailed explanation-2: -O negative donors are often called ‘universal donors’ because anyone can receive the red blood cells from their donations. Although about 8% of the population has O negative blood, it accounts for around 13% of hospital requests for red blood cells.

Detailed explanation-3: -O negative blood type can only receive O negative blood. O negative donors who are CMV negative are known as Heroes for Babies at the Red Cross because it is the safest blood for transfusions for immune deficient newborns.

Detailed explanation-4: -Less than 4% of the U.S. population have AB positive blood. AB positive blood type is known as the “universal recipient” because AB positive patients can receive red blood cells from all blood types.