- There is no substitute for human blood.
- While approximately 50% of the population is eligible to donate blood, only about 5% do so.
- O+ and A+ are the most common blood types and are most often needed.
- Because O- is the "universal donor," this blood type is frequently needed.
- The average adult has 8 to 10 pints of blood.
- You can donate one pint every eight weeks.
- After donation, blood volume begins replacing itself within hours.
- When separated into components, one unit of whole blood can save the lives of up to three people.
- Whole blood has a shelf life of 42 days.
- Ten tests are performed on every unit of donated blood.
- To be eligible to donate blood a person must be 16, be in good health and weigh at least 110 pounds.
- Each year about 14 million units of blood are donated in the United States by about 8 million volunteer donors. These units are transfused to as many as 4 million patients per year.