OVERVIEW OF THE IMMUNE SYSTEM
LYMPHATIC AND IMMUNE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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AB+
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AB-
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O+
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O-
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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 is the universal blood type. 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. Learn more about how you can be a Hero for a Baby.
Detailed explanation-3: -O positive blood can’t be used universally because it has the Rh factor, but it is compatible with all positive blood types including O+, A+, B+, and AB+. Since over 80% of the population has a positive blood type, type O positive blood is in high demand.
Detailed explanation-4: -O negative blood is often called the ‘universal blood type’ because people of any blood type can receive it. This makes it vitally important in an emergency or when a patient’s blood type is unknown.
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. Antigens are proteins that are capable of evoking an allergic response in someone whose whole body does not have the antigens.