Standardization ..................................................................................................................... 20. Efficiency Defined and Measured in the Operating Room...........................................................
There are four major blood types: A, B, AB, and 0. The blood types are determined by proteins called antigens (also called agglutinogens) on the surface of the RBC. There are two antigens, A and B. If you have the A antigen on the RBC, then you have type A blood. When B antigen is present, you have type B blood. When both A and B antigens are present, you have type AB blood. When neither are present, you have type O blood.
Blood Tests. 1  Complete blood count: An analysis of the concentration of red blood cells, white blood cells, and platelets in the blood. 2  Blood smear: Drops of blood are smeared across a microscope slide, to be examined by an expert in a lab. 3  Blood type: A test for compatibility before receiving a blood transfusion.