Biology: Blood Groupings in human (free read in e-library)

Biology: Blood Groupings 

 

• Father of Blood Grouping: Karl Landsteiner.
• Karl Landsteiner discovered A, B and 0 blood groups.
• Decastello and Sturle discovered AB blood group.

 

Blood Group	Antigen
A	Has only A antigen on red cells (and B antibody in the plasma)
B	Has only B antigen on red cells (and A antibody in the plasma)
AB	Has both A and B antigens on red cells (but neither A nor B antibody in the plasma)
O	Has neither A nor B antigens on red cells (but both A and B antibody are in the plasma)

 

 

 

Blood Type	Donate Blood To	Receive Blood From
A+	A+ AB+	A+ A- O+ O-
O+	O+ A+ B+ AB+	O+ O-
B+	B+ AB+	B+ B- O+ O-
AB+	AB+	Everyone
A-	A+ A- AB+ AB-	A- O-
O-	Everyone	O-
B-	B+ B- AB+ AB-	B- O-
AB-	AB+ AB-	AB- A- B- O-

 

 

RH Factor

• It is a blood antigen found in RBC.
• A person can be Rh+ or Rh– depending upon the presence of Rh factor in RBC.
• Avery important point is Rh+ can receive blood from both Rh+ and Rh– but Rh– can receive blood from Rh– only.
• In world population, Rh+ are 85% and Rh- are 15%.
• Blood transfusion technique was developed by James Blundell.