MICROANATOMY

Detailed explanation-1: -Type O-negative blood does not have any antigens. It is called the “universal donor” type because it is compatible with any blood type. Type AB-positive blood is called the “universal recipient” type because a person who has it can receive blood of any type.

Detailed explanation-2: -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-3: -People with type O-blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group.

Detailed explanation-4: -38% of the population has O positive blood, making it the most common blood type. O positive red blood cells are not universally compatible to all types, but they are compatible to any red blood cells that are positive (A+, B+, O+, AB+).

Detailed explanation-5: -Type O blood is called the universal donor because: It has neither A nor B surface antigens on the red blood cells.