2006-12-14 20:21:11 · 4 answers · asked by Shiva 1 in Health ➔ Diseases & Conditions ➔ Diabetes
Nope. The blood types are based on antigens on the cell surface. These are protein markers that are on the surface of red blood cells. There are two antigens, A and B. A lack of either of these is known as O. A person's immune system recognizes these blood surface antigens. You inherit one antigen from your mother and one from your father. If you inherit two A's or an A and an O, your blood type would be A. If you inherit two B's or a B and an O, you would be B. If you inherited one of each, you would be AB. If you inherited neither, you would be O. Because O blood types have no surface antigens, they are known as "universal donors" because their blood would not be recognized as foreign by anyone's immune system. If you are AB, you are known as a universal recipient because your immune system recognizes all types as being "normal". If you're A and you receive B blood, your immune system will attack the transfused blood.
The + and - designations refer to whether or not you have another surface antigen known as Rhesus factor. If you're blood type A and you're positive for Rhesus, you're A+. If you don't have the Rhesus gene, you're A-. It is just another surface antigen.
If you're O negative, your blood is very valuable as donor blood because it can be given in emergency situations when you don't have time to crossmatch a patient's blood with the donor blood.
There is no numeric classification of blood types.
2006-12-14 20:39:11 · answer #1 · answered by tiredsurgeon 3 · 0⤊ 0⤋
1
2016-09-14 08:37:04 · answer #2 · answered by Lottie 3 · 0⤊ 0⤋
NO
only A B and O, AB
the a1 is a subgroup
2006-12-14 20:25:19 · answer #3 · answered by Anonymous · 1⤊ 0⤋
No but I think you mean hba1c
2006-12-15 01:42:08 · answer #4 · answered by ayz 3 · 0⤊ 0⤋