Do you know what blood group you have or your blood type are compatible? We should all know how to answer it, as it represents basic information in situations such as blood donations, transfusions, or pregnancies. In addition, you have to be aware about blood type compatibility, when you are going to donate blood. Some blood groups are compatible but not all. It is also very interesting to know how blood groups are inherited. So, in this post, we explain Blood type compatibility chart to you.
Blood type compatibility chart
Not all blood groups are compatible, and there is specific compatibility for both the AB0 group and the Rh factor. In the following table, we show you the compatibility of the different blood groups when receiving and donating blood:
If a transfusion is made between incompatible blood groups, both in group AB0 and in Rh. Antibodies have generated that cause what is called an “acute hemolytic transfusion reaction” with serious health consequences. Since the immune reaction that is triggered causes the breakdown of red blood cells (hemolysis).
Blood types are classified according to the presence or absence of agglutinins, also called antibodies or proteins, in the blood plasma. So, blood can be classified into 4 blood groups according to the ABO system in:
Type A blood: it is one of the most common types and contains antibodies against type B.Also called anti-B, being able to receive blood only from people of type A or O;
Type B blood: Blood group B reacts to groups A or AB. It is one of the rarest types blood groups. And can only receive blood from people of type B or O;
Type AB blood: it is one of the rarest types and contains antibodies against types A or B.So you can receive blood from people of all blood groups without there being a reaction.
Type O blood: it is known as the universal donor. It is one of the most common types that contains anti-A and anti-B antibodies. Receiving blood only from type O people. Otherwise, agglutination of red blood cells may occur.
People with type O blood can donate blood to anyone but can only receive donations from people with the same blood type. On the other hand, type AB people can receive blood from anyone but can only donate blood to people with the same blood type. The transfusion must be only performed by incompatible people, because otherwise there may be transfusion reactions, which can lead to complications.
Blood type compatibility chart for donating blood
The table below shows by blood type to whom you can donate blood and from whom you can receive it:
Blood Type You can donate to: You can receive donation from:
Type A + blood AB + and A + A +, A-, O + and O-
Bloodtype A A+, A-, AB + and AB- A- and O-
Type B + blood B + and AB + B +, B-, O + and O-
Blood type B- B +, B-, AB + and AB- B- and O-
Type AB + blood AB + A +, B +, O +, AB +, A-, B-, O- and AB- (all)
Blood type AB- AB + and AB- A-, B-, O- and AB-
Type O + blood A +, B +, O + and AB + O + and O-
Blood type O- A +, B +, O +, AB +, A-, B-, O- and AB- (all)
Blood type (A, B, AB, O) and compatibility chart
What is the Rh Factor?
In addition to the classification of blood groups with the ABO system. They also classified according to the Rh factor in + and -. The Rh factor corresponds to an antigen present in the red blood cells. And you must also consider that during the transfusion process. Otherwise, there may be serious complications related to the blood transfusion.
However, people who have the Rh factor are classified as Rh +. And can receive blood from people who are both Rh + and Rh-.However, they can only donate blood to other people who also have Rh +. People who do not have the Rh factor classified as Rh-.Being able to donate blood both for people who have the Rh factor and for those who do not have it. However, they being able to receive blood only from Rh- people.
Know what your child’s blood type is
Normally the child’s blood type identified after birth through the heel test or neonatal screen. However, the child’s blood type can also be identified through a routine blood test. Or requested by the pediatrician to diagnose the disease.
However, knowing the parents’ blood type can know the possible blood types that the child may have. Fill in the data below and find out what your child’s possible blood group is:
Mother’s Blood Type
Father’s Blood Type
In pregnancy, when the mother is Rh-negative, and the baby is positive, there is a probability that the pregnant woman will produce antibodies to eliminate the baby, which may cause an abortion. For this reason, pregnant women with this blood type should consult a gynecologist to verify when the injection of anti-D immunoglobulin is indicated. Still, serious problems never occur during the first pregnancy.
Who can donate blood?
The criteria for donating blood may vary from country to country. However, the common ones are:
Be between 18 and 65 years old. However, people from 16 years of age can donate blood if they have the authorization of the parents or guardians. And they have other requirements for the donation.
Weigh more than 50 Kg;
If you have had a tattoo, you must wait between 6 to 12 months. Especially, to certify that you have not been infected with any hepatitis. And that you are still healthy.
Never have used illicit injectable drugs;
Not having had risky behaviors such as sexual relations with strangers. Or with multiple partners in the last 12 months.
Be healthy and not have blood-borne diseases such as hepatitis, AIDS, Malaria, or Zika.
Men can only donate blood once every 2 months for a maximum of 4 times a year. And women every 3 months for a maximum of 3 times a year. Each donation takes about half an hour.
General recommendations for the donor
It is important that 4 hours before the donation, the consumption of fatty foods is avoided. Likewise, it would be best to not go on an empty stomach, having breakfast or a snack before donating blood.
After donating blood, the donation service usually offers a snack that you must eat to replenish energy. At home, it is important to drink plenty of fluids, rest. And not smoke for at least 2 hours after donation. You should avoid straining with the arm where you withdrew the blood. And not engage in very strenuous physical activity, as there may be a risk of fainting.
How to donate blood?
The person who wishes to donate blood must go to one of the blood collections stations. Fill out a form with various questions about their health and personal habits. A specialist will analyze the form, and if the person is suitable, they will be able to donate blood.
A nurse will put a needle into the vein in your arm. Which has a tube through which the blood will pass into a bag for storage. Usually, the nurse asks to open and close the fist or hand out a stress ball to be squeezed and promote blood flow.
During the process, even though only a little less than half a liter is removed. It is possible to feel a little discomfort in the arm, lack of strength to close the fist, dizziness, weakness, and pale skin, being normal. At the end of the donation, the service usually offers a snack to the donor to restore their energy.
It is safe to donate blood. The donor is not at risk of contracting any disease since the national. And international safety standards for blood donation of the country’s Ministry of Health. And the American Association and the European Council of Blood Banks follow it.
Rh incompatibility in pregnancy
During pregnancy, it is very important to take into account the Rh factor of the mother.Rh-positive is the most common blood group. Rh-negative is less common, and when pregnant with an Rh-negative woman.It is necessary to take certain precautions. If the couple is Rh-positive, there is a possibility that the baby is also. In this case, complications may occur during pregnancy. It occurs if the blood of the mother and child come into contact.
Although it is normal for the mother’s blood not to mix with the baby’s during pregnancy. It can occur during childbirth. If this happens, the mother’s Rh-negative blood can react with the child’s Rh antibodies. It is not a problem in a first pregnancy. But it is a problem for later pregnancies since the antibodies could cross the placenta. And attack the red blood cells of a future Rh-positive baby. In this case, it could cause anemia in the fetus that could lead to death.
The doctor will prescribe an analysis to determine the mother’s blood group and her Rh factor at the first prenatal visit. If he is Rh-negative. He will probably carry out an antibody test in the first trimester to detect possible antibodies with a positive Rh factor. And, where appropriate, take appropriate measures by injecting Anti-D gamma globulin. However, that prevents the mother’s body from generating Rh antibodies to throughout pregnancy and after delivery.
FAQ on Blood type compatibility chart
What blood group do children inherit?
Every human being has a different blood group that depends on the characteristics present on the surface of the red blood cells and in the blood serum. This blood group inherited from parents, so children can only have the blood group of one of their parents.
Which blood group is more resistant to Covid 19?
According to the study, people with blood group 0 have a lower risk of mortality related to the virus.
What blood is immune to Covid?
Type 0 blood has greater protection against Covid-19.
What does the O-positive blood type mean?
They confirm that type 0 blood may offer some protection against COVID-19 infection. The susceptibility to a COVID-19 infection can vary according to the blood group. People with type 0 may have a lower risk, while those with A and AB risk presenting severe clinical pictures.