Blood types are inherited and are based on a combination of both parents. Your blood type can provide you with insight into potential future health issues, as different blood types are associated with susceptibility to specific diseases and infections. For example, individuals with type O are more susceptible to cholera and ulcers. Identifying your blood type is also critical if you are in need of a transfusion because not all blood types are compatible. If you receive a transfusion of incompatible blood, serious reactions may occur, including the possibility of death.
The Blood Type Test is performed to determine a person's blood type, representing certain markers (called antigens) on the surface of red blood cells. The Blood Type Test includes tests for blood group antigens (ABO) and the Rh antigen (Rho typing). The ABO test identifies if you have one of four blood types: A, B, AB or O. Rh antigen test identifies if the Rh antigen (also called the Rh factor) is Rh-positive or Rh-negative.
Pregnant women should know their Rh factor to help monitor complications during pregnancy. If the fetus has the opposite Rh factor, it is possible that the mother will develop antibodies against her baby. This further complicates the pregnancy if the second child is also has the Rh factor opposite of the mothers because the chance of developing antibodies is even greater.