The test to determine your blood group is called ABO typing.
Your blood sample is mixed with antibodies against type A and B blood.
Then, the sample is checked to see whether or not the blood cells stick together.
If blood cells stick together, it means the blood reacted with one of the antibodies.
Do blood tests show blood type?
The ABO test shows that people have one of four blood types: A, B, AB, or O. If your red blood cells have: The A antigen, you have type A blood. Both the A and B antigens, you have type AB blood. Your plasma does not have antibodies against type A or type B blood.
Does my doctor know my blood type?
Talk to your doctor
If your doctor has drawn or tested your blood before, it is likely they have your blood type on file. You can ask your doctor to conduct a blood test if your doctor doesn’t have your blood type on file, call or visit your doctor’s office and ask for a blood test to determine your blood type.
What is the rarest blood type in the world?
What’s the rarest blood type?
- AB-negative (.6 percent)
- B-negative (1.5 percent)
- AB-positive (3.4 percent)
- A-negative (6.3 percent)
- O-negative (6.6 percent)
- B-positive (8.5 percent)
- A-positive (35.7 percent)
- O-positive (37.4 percent)