Blood Lecture 3 Flashcards
(40 cards)
Blood type determined by
Presence/absence of specific antigens
Antigens
substances elicit immune response
Agglutinogen
Antigen that makes prod. of agglutinin
Agglutinins react with?
React with antigens if mixed incorrectly
Blood type determined how?
Which surface antigens present in RBC membranes
Type A blood will have which antibodies?
B
Rh+ RBC’s have?
Rh antigen
Rh- RBC’s lack?
Rh antigen
If Rh- receive Rh+ blood what happen
System makes anti Rh antibodies
If Rh- receive Rh+ second exposure what happens?
Agglutination and hemolysis
How anti-a or anti -b antibodies determined
Genetically
Transfusion is
transfer of whole blood or blood components
Where transfusion occurs
Into bloodstream or Red Bone Marrow
Transfusion used for
Anemia, blood volume, immunity
Incompatible blood transfusion causes
Agglutination
Universal recipient?
AB cause no antibodies
Universal donor?
Type O cause no antigens
Hemolytic newborn disease
If Rh- mother has Rh+ baby, mother might create anti Rh antibodies
What happens if mother creates anti-Rh antibodies
second pregnancy, antibodies cross placenta and cause agglutination
How blood typing determined
Drops of blood mixed in solution with antibodies, clumping occurs
Blood typing necessary for?
Avoid transfusion reactions
Anemia
Oxygen carrying capacity of blood reduced
Iron deficiency anemia
Inadequate absorption, or intake
Iron deficiency anemia who’s greatest risk
Women