Whole blood is the type of donation most people think of when donating blood. One unit (about one pint) of whole blood is collected during this donation, containing the three essential components of blood: red cells, plasma, and platelets.
- All blood types are needed, especially type O
- Type O donors are in high demand, especially O- donors (universal red cell donor) whose donations can be given to everyone in need
- Donate 3–4 times per year, or every 8 weeks (56 days)
- Approximate donation time: 1 hour