Fasting test?You do not need to be fasting for this blood group test.
Blood group blood test - What is it?Red blood cells (erythrocytes) have chemical structures on the outside. One of those structures are antigens. The presence of antigens determine your blood group. With the help of this antigen system, the body can also distinguish whether a blood cell is foreign or endogenous. In the first case, a rejection reaction occurs. If you want to be a donor or undergo a blood transfusion, it is it is useful to know your blood group. In addition, it is important for women who want to become pregnant to know their blood group, in connection with possible rejection reactions in the uterus.
The blood group system that we use today was described in 1900. This is the ABO blood group system. Eight blood groups are distinguished: blood group A, blood group B, blood group AB and blood group O. All these can be positive or negative. This is explained below. In the Netherlands, blood group O is the most common and AB the least. In addition, most people are rhesus D positive. That is why you can safely give blood group O negative to most people.
What do we determine in the blood group test?
Blood: ABO blood groupSomeone with blood group A, that is, antigen A on the red blood cells, has antibodies (antibodies) against antigen B. This also applies vice versa. Someone with blood group B has antibodies against antigen A. Someone with blood group O produces antibodies against antigens A and B in the event of a transfusion. The red blood cell itself has no antibodies against A or B. We therefore regard blood group O as a universal donor. You can give this to anyone regardless of their blood type to minimize the chance of rejection. Someone with blood group AB has no antibodies against A or B. So blood group AB is the universal recipient. This person can receive all blood types without a high risk of rejection. However, in the Netherlands only 3% have blood group AB. By the way, you largely inherit your blood groups from your parents.
Blood: Rhesus factor DMost people are Rhesus (D) positive. This means that they do not produce antibodies against this rhesus factor. Someone who is Rhesus factor D negative can produce antibodies against Rhesus factor D after coming into contact with someone who is Rhesus D positive. This rarely happens. In men, actually only after transfusion. In women, this can occur during pregnancy with a rhesus-positive child. Please note, even if you have had a miscarriage as a woman, your body may have already formed antibodies against the rhesus factor. Normally no rejection takes place the first time. However, during a subsequent pregnancy the antibodies are fully developed and can therefore reject the blood of the unborn child.
When to choose this blood group test?Choose the blood group blood test when:
- You treatment want to know your blood group and rhesus factor
- You want to donate blood and therefore undergo a blood transfusion.
- You want to undergo IVF treatment
- You are pregnant and you want to know your blood group and rhesus factor.