Swiss investigators conducted a prospective interventional study, designed to reduce blood transfusions after such orthopedic procedures. A 1-year control period (involving 208 patients ...

Some blood types are incompatible with others meaning that if a patient is given the wrong type in a blood transfusion ... According to the charts, the 10 countries with the highest prevalence ...

O negative is the universal donor type, compatible with any blood type since it lacks certain antigens on the surface of its blood cells. However, only 8% of people have O-negative blood.