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How do I find out blood type?

Blood type is classified by a system which indicates the presence or lack of certain antigens in a person’s red blood cells.  It is important to know your blood type before undergoing a number of medical procedures.  Knowing a person’s blood type allows doctors to determine their compatibility with donors for blood transfusions or organ transplants and prior to surgery.  Testing for blood type is also important in helping to avoid complications for pregnant women.  Blood type can be determined by a simple test commonly referred to as ABO grouping and RH typing.  Receiving this test can be an important precaution in avoiding future health problems.             


An easy, affordable way to find out blood type

You may be wondering, “How do I find out blood type?”  At Request a Test, we have access to labs all over the country.  We use the same testing facilities that are employed by many hospitals and physicians for their testing needs.  All of our labs operate on a walk in basis so there is no need to schedule appointments.  Ordering a blood type test (ABO Grouping and RH Typing) with us eliminates the need to go through your doctor or insurance.  Our testing for blood type is always reasonably priced with no hidden fees. 


Testing for blood type (ABO Grouping and RH Typing)

How do you find out blood type?  The blood type test (ABO grouping and RH typing) is conducted using a sample of a person's blood.  This test typically sees results in 1-2 business days.  For pricing and more information on this and other tests available in our blood and blood diseases category, please go to


What do Blood Types mean?

Blood type describes the type of antigens present in a person’s red blood cells.  The introduction of blood with incompatible antigens into a person’s body will cause the body to develop antibodies against those antigens.  Blood types are typically classified as A, B, AB, or O.  Blood types that contain the RH antigen are positive and those without it are negative.  So a person whose blood cells have the A and RH antigens, but not the B antigen would be blood type A-positive.  Type O-negative blood is often called the “universal donor” because it contains no antigens and can be given to a person of any blood type.  Blood type AB-positive is often called the “universal recipient” because it contains all forms of antigens and can receive blood of any type.    


Who should get a Blood Type Test (ABO Grouping and RH Typing)?

Knowing one’s blood type is important for everyone.  Having received a blood type test (ABO grouping and RH typing) can save valuable time in the event that you need to know your blood type for medical reasons.   Serious health complications can result when a pregnant woman had a different blood type than her baby.  For this reason, all pregnant women need to receive a blood type test (ABO grouping and RH typing).    


Why get a Blood Type Test (ABO Grouping and RH Typing)?

During a blood transfusion, it is important that the donor’s blood contains the same antigens as the recipient.  If the donor blood is incompatible, antibodies in the recipient will immediately begin to attack and destroy the donor blood cells.  The result of this transfusion reaction can range from mild to serious illness and may even result in death. 

It is possible for a pregnant woman and her fetus to have different blood types.  If the mother’s blood type is RH-negative and the baby’s is RH-positive, the mother’s immune system may develop antibodies that will attack the baby’s blood cells.  This process, called RH sensitization, may affect the health of the baby and can result in serious health risks during future pregnancies if the fetus has an incompatible blood type.    


When to get a Blood Type Test (ABO Grouping and RH Typing)

A blood type test (ABO grouping and RH typing) should always be performed before a person receives a blood transfusion, donates blood, donates an organ for transplant, or undergoes surgery.  A woman who is trying to become pregnant should receive a blood type test.  It is not necessary to wait until you are undergoing a medical procedure to receive a blood type test.  This test can be conducted at any time and it is always useful to know your blood type.   


Where can I get a Blood Type Test (ABO Grouping and RH Typing)?

Request a Test contracts with 2 of the largest labs in the United States to provide you with 1000s of lab collection centers nationwide.  When you order your blood type test (abo grouping and rh typing) with us, we will find the lab location that is most convenient for you.  Once your order is complete, you can go to the lab any time during their business hours.  To find the lab location nearest to you or to view a complete list of available lab locations, please go to  


Blood Type Test (ABO Grouping and RH Typing) preparation

There are no special preparations necessary for a blood type test (ABO grouping and RH typing).


Blood Type Test (ABO Grouping and RH Typing) procedure

Upon arrival at the lab, you will be subjected to a simple blood collection.


Blood Type Test (ABO Grouping and RH Typing) accuracy

At Request a Test we use only nationally accredited labs with highly trained personnel and state of the art equipment to ensure the highest possible accuracy in your blood type test (ABO grouping, RH typing) results.


Blood Type Test (ABO Grouping and RH Typing) results

How do you find out your blood type?  The blood type test (ABO grouping and RH Typing) typically sees results in 1-2 business days.  You will be notified by e-mail as soon as your results are available.  You can access your results online or call to speak to a representative.  Results can also be sent by fax or mail by special request. 

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