Fat soluble vitamins, once they have been stored in tissues in the body, tend to remain there. This means that if a person takes in too much of a fat soluble vitamin, over time they can have too much of that vitamin present in their body, a potentially dangerous condition called hypervitaminosis (literally, too much vitamin in the body).
If your blood lacks the Rh antigen, it is called Rh-negative. If it has the antigen, it is called Rh-positive. When the mother is Rh-negative and the father is Rh-positive, the fetus can inherit the Rh factor from the father. This makes the fetus Rh-positive too.
Rh is short for Rhesus factor. Rhesus factor is a type of antigen present on the surface of red blood cells. If you have have this particular antigen, you are Rh positive. If you donât, youâre Rh negative. The Rh factor is important in determining blood type for transfusions.Normally Your immune system protects against potentially harmful substances (antigens).When foreign antigens enter your body, your immune system makes antibodies to help destroy them.uring pregnancy a mother may be exposed to the Rh positive cells of her baby and develop antibodies to them. During a future pregnancy, these antibodies can destroy the red blood cells of an unborn child, leading to serious problems. If both parents are Rh-negative, they can only have Rh-negative offspring.