Symptoms. Related dementias share some common symptoms. Vascular changes that start in brain areas that play a key role in storing and retrieving information may cause memory loss that looks very much like Alzheimer's disease.
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.
Of the human blood types, O is the most common. It is a universal blood type. Blood types are further broken down into two groups, negative and positive. This is called the RH factor. The RH factor is the Rhesus (rhesus as in monkey) blood factor. If your blood tests positive for this, you have the factor in your blood. If you test negative, you do not have the factor in your blood. The RH factor is a protein found in the human blood that is directly linked to the Rhesus Monkey.