Antigens are molecules made up of proteins and/or sugars that are capable of eliciting an immune system response.To understand this statement is it necessary to understand what antigens and antibodies are and their function: This system is comprised of four major blood groups which are based on the absence or presence of two specific antigens – A and B on the surface of the red blood cells, and the absence or presence of anti-A or anti-B antibodies in the plasma (the liquid part of the blood). The ABO blood group test determines your blood type based on the ABO blood group system. Understanding how different blood types are determined ABO blood typing If you donate an organ, tissue or bone marrow for transplant.Before surgery (or in an emergency situation if time allows) in case you need to receive a blood transfusion or blood components.When a pregnancy test is positive (if pre-pregnancy testing was not undertaken).In pre-pregnancy counselling for both partners (this is to determine the risk of Rhesus (Rh) incompatibility with a foetus).While blood type testing is not generally part of routine medical health screening, a doctor or clinic may order a blood type test:

It is dictated by the absence or presence of certain proteins (or in some cases, carbohydrates), known as antigens, on the surface of the red blood cells, as well as the antibodies (protective proteins that help to fight off foreign bodies, infection and disease-causing invaders) present in the blood's plasma (the liquid part of the blood without the cells).

Your blood type is a genetic trait that is inherited based on what your parents have passed down to you 1, much like your eye and hair colour. Rapid Results and home blood type test kit optionsĪ blood type test also referred to as an ABO blood group test or 'blood typing', determines your ABO blood group and RH (rhesus) type. Understanding how different blood types are determined

Blood type test at home