ANATOMY

Detailed explanation-1: -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: -Pruthi, M.B.B.S. For emergency transfusions, blood group type O negative blood is the variety of blood that has the lowest risk of causing serious reactions for most people who receive it. Because of this, it’s sometimes called the universal blood donor type.

Detailed explanation-3: -In an emergency situation where a patient’s blood type is unknown, type O negative blood is the only blood type that is safe to use. The reason is that it is compatible with all blood types. Type O negative is known as the universal blood type.

Detailed explanation-4: -Preferred donation methods: double red blood cell, whole blood, and platelet. Types O, A, B and AB positive can receive O+ red cells, and O+ platelets can go to anyone (except childbearing aged females of types O-, A-, B-and AB). Type O+ can ONLY receive types O+ and O-, and only type O+ and O-can receive O+ plasma.

Detailed explanation-5: -O-is the highest in-demand blood type because anyone can receive O-red blood cells, although O-plasma can only be transfused to another type O. Type O-red cells can be used for any patient but are especially needed for emergencies, for babies, and for those with weakened immune systems.