krotgot.blogg.se - How common is a negative blood type

Blood that is lost through an injury, an illness or a surgery can be replaced through transfusion. In Japan, the idea of blood type as personality type is so popular that Japanese ask "What's your blood type?" about as often as Americans ask "What's your sign?"Ī blood transfusion is the transfer of blood from one person to another.Legend has it that Type A is calm and trustworthy Type B is creative and excitable Type AB blood is thoughtful and emotional and Type O is a confident leader. Some people think blood type tells about personality.Dogs have 4 blood types cats have 11 cows have about 800. Different kinds of animals have different kinds of blood.In China, over 99 percent of the population has Rh+ blood.

Certain blood types are more common in certain countries.

Blood type is inherited, just like eye color.

Individuals with Type AB positive blood are considered the universal recipients because people with that type can receive any blood type.īlood Type Chart: Below is a chart listing blood types, the percentage of Americans with that type, and the types they can donate to. People with Type O negative blood are considered to be universal donors because they can donate to people of any blood type. If the blood types are not compatible, red blood cells will clump together, making clots that can block blood vessels and cause death. During a blood transfusion, a patient must receive a blood type that is compatible with his or her own. Knowing a person's exact blood type is critical when a blood transfusion is necessary. The name Rhesus comes from Rhesus monkeys, in which the protein was first discovered. Rhesus refers to another type of antigen, or protein, on the surface of red blood cells. Blood is either Rh positive (Rh+) or Rh negative (Rh-).

The Rh FactorĮach blood type is also grouped by its Rhesus factor, or Rh factor. For example, the surface of red blood cells in Type A blood has antigens known as A-antigens. Each letter refers to a kind of antigen, or protein, on the surface of red blood cells. Human blood is grouped into four types: A, B, AB, and O.