Why can {eq}\text {Rh}^+ {/eq} blood be given only once to a non-sensitized person who is {eq}\text {Rh}^- {/eq}?


Why can {eq}\text {Rh}^+ {/eq} blood be given only once to a non-sensitized person who is {eq}\text {Rh}^- {/eq}?

Rhesus (Rh) Factor:

Blood types are determined by the presence and absence of certain antigens on the surface of a person's red blood cells. Along with the ABO blood grouping system, the Rh blood group is the most important blood group system. The presence or absence of the 'D' antigen on the surface of red blood cells determines whether the blood is Rh+ or Rh-. In Canada, Rh+ blood tends to be more common than Rh-.

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Before a patient can receive a blood transfusion, the hospital laboratory must determine the donor and the recipient's blood types to determine if the...

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Rh Blood Group, Rh Factor & Erythroblastosis Fetalis


Chapter 13 / Lesson 6

The Rh blood group system is a classification system for blood based on the presence or absence of Rh antigen. Individuals who possess the Rh antigen are considered Rh positive, whereas individuals who do not carry the antigen are considered Rh negative. Learn about blood groups, the Rh blood group system, Rh negative blood, and the effect of Rh factor in erythroblastosis fetalis.

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