Blood is made up of red blood cells, white blood cells, platelets, and plasma. Markers called antigens are found on the surface of red blood cells, and differences in these markers classify various ...

Knowing your blood type is critical during emergency health situations. Knowing your blood type is crucial medical information, but unless you've given blood before you might not be sure what yours is ...

There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

The organisation explains that O-negative blood serves as a universal donor type, making it the primary choice for critical ...

CONNECTICUT (WTNH) — Connecticut Blood Center officials say there’s an urgent need for type O-negative and B-negative blood as they prepare for the summer months. They said the region’s supply of ...