Question

if a person is injured and has type o blood, what type(s) of blood would the doctor be able to give them in order to keep them alive?
type a or type o
type a, b, or o
type b or type o
type o only

Explanation:

Type O blood has both anti-A and anti-B antibodies in the plasma. If given blood with A or B antigens (from Type A, B, or AB blood), these antibodies will attack the foreign blood cells, causing a dangerous transfusion reaction. Only Type O blood, which has no A or B antigens on its red blood cells, is compatible.

Answer:

Type O only