4 The disease erythroblastosis fetalis (also called hemolytic disease of the new

Question

4 The disease erythroblastosis fetalis (also called hemolytic disease of the newborn) develops in a fetus or a newborn infant with Rh-positive blood and an Rh-negative mother. Symptoms result w cross the placenta and interact with the fetus' erythrocytes. Why risk for this disease? Why are Rh-negative fetuses not at risk for this disease? hen maternal anti-Rh are the children of Rh-positive mothers not at Explain why a person who is blood type O- can donate blood to any blood type but can receive only from individuals who are also blood type O- 5 no the recipients have been

Explanation / Answer

4. Rh + means that blood has Rh Antigen present and in Rh - patient there are no Rh Antigen.

5. In patient having O - blood group there are NO antigen present therefore there will not be any new Antibody formation in patient receiving blood of O - . Therefore he is Universal donor.

But O - patient has following Antibody present - Anti A, Anti B and Anti Rh therefore if any other blood (for example Blood A type is give then Anti A will react with Antigen A which are present on donors blood and will lead to hemolysis) is given then antigen-antibody reaction will occur and this will lead to hemolysis and transfusion faliure.

3. Development

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