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.
One or more of the following tests may be done: 1  Blood tests: You may need blood taken to give caregivers information about how your body is working. The blood may be taken from your hand, arm, or IV. 2  Imaging tests: Angiography: This test looks for problems with blood flow in your abdomen.