Why Order Blood Type Tests Online?
At Health Testing Centers we make blood type testing easy by allowing you to avoid the hassle of visiting your doctor. We provide blood type testing, including Doctor's oversight, using the same labs that your doctor utilizes. Test results are not a part of your permanent medical record and are securely delivered to you, saving time and money.
Fast, accurate, clear lab results without doctor visit
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Carefully designed by our physicians these panels provide a thorough analysis of your blood type.
Blood Type Lab Tests (A-Z)
Learn your blood type. Test determines blood group (A, B, AB, or O) and Rh type (positive or negative)
Your Blood Type and Your Health
Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: Jan 13, 2020
Last Modified Date: Jan 13, 2020
Published Date: Jul 29, 2017
What is my blood type?
Blood typing is a means used to medically categorize a person's specific type of blood. Blood type is determined by looking at the makeup of red blood cells to find out whether or not certain proteins, called antigens, are present. Here we'll go over the details of blood typing, including how blood type is determined, what the different blood groups are and why blood typing is important, as well as how you can get the answer to the question “What is my blood type?”
Why does blood type matter?
The primary reason that blood type matters is that not all blood types are compatible. This becomes important in many medical situations. For instance, a person who needs a transfusion must be given blood that is compatible with their blood type, since blood that is not can trigger a dangerous immune system response that can lead to serious health complications and, in some cases, death. Transplant patients must be given organs from donors with compatible blood types to reduce risk that their bodies will reject their new organ. Incompatible blood types in a mother and unborn child can have life-threatening consequences without appropriate treatment.
Another reason blood type matters is that knowing yours can help you take better care of your health. That's because your blood type can make you more prone to certain health issues. For instance, studies have shown that people with type AB blood have a higher risk of heart disease as compared to other blood types, while type O people are more likely to get ulcers. Knowing your blood type and the health risks associated with it can help you and your healthcare provider create a preventive care plan tailored to those specific needs.
How is blood typing done?
Blood is classified into types based upon its blood group and Rh factor. This is done by evaluating certain markers, called antigens, on the surface of red blood cells. The most important antigens in establishing blood type are blood group antigens, or ABO, and the Rh antigen. These are evaluated via blood tests, called ABO and Rh tests. The ABO test determines which type of blood a person has in terms of four blood groups, which are A, B, AB or O. This is done according to the antigens found on the surface of red blood cells as follows:
- The A antigen – The presence of this antigen means that your blood is type A.
- The B antigen – Having the B antigen means you have type B blood.
- Both A and B antigens – The presence of A and B antigens makes your blood type AB.
- Neither A nor B antigens – The absence of both A and B antigens means that your blood is type O.
The Rh test is the next step in determining individual blood type. This test determines whether or not Rh antigens, also commonly called Rh factors, are present, further breaking down blood types into positive or negative categories as follows:
- If your red blood cells carry the Rh antigen, you have Rh-positive blood.
- If there is no Rh antigen present, your blood is Rh-negative.
What are the different blood types?
Both ABO and Rh blood test results are used to classify blood into types. These are:
- A-positive (A+)
- A negative (A-)
- B-positive (B+)
- B-negative (B-)
- AB-positive (AB+)
- AB-negative (AB-)
- O-positive (O+)
- O-negative (O-)
How do we get our blood type?
Your blood type is a genetic trait passed down from your parents, rather like the color of your hair and eyes. Basically, you get one gene related to blood group from each parent, as well as one from each related to Rh factor, and the combination of the genes donated by each parent determine which blood type you will have. This genetic determination of blood type is the reason that blood type testing has, over the years, often been used to help determine the paternity of children – although blood type comparisons have typically proven to be more useful in ruling out potential fathers than in proving paternity.
Where can I get blood type testing near me?
Search for convenient blood type testing lab locations near you using our Lab Locator.