Blood Types

O-, O+ 
Patients with any blood type can receive O negative blood. Type O blood is required and must be available in inventory for newborn babies and emergency patients. O+ is the most frequently occurring blood type and is found in 37 percent of the population. O- is found in six percent of the population.

This blood is the second most frequently occurring blood type. Thirty-four of every 100 people have A+.

A-, B+, B- 
These are rare blood types and less than 10 percent of the population have this blood type.

This blood type is acknowledged to be the “universal recipient” because AB+ people can accept red blood cells from any other blood type. In the United States, less than four percent have this type of blood.

This is the least common blood type in America because less than 1% of the population in the United States have AB negative blood. Patients who have AB negative blood can receive red blood cells from all negative blood types.

Facts About Blood

  • Anyone in good health, at least 17 years old, and at least 110 pounds may donate blood every 56 days, or every two months.
  • Each year more than 4.5 million lives are saved by blood transfusions.
  • About one in five people admitted to the hospital will need blood.
  • Up to three: the number of patients that can be treated with one pint of donated blood.
  • There is no substitute for human blood.
  • 50 percent of the U.S. population is eligible to donate blood -- only 5 percent do.
  • Cancer, trauma patients, and those undergoing open-heart surgery require platelet transfusions to survive.
  • Blood makes up about 7 percent of your body's weight.
  • A newborn baby has about one cup of blood in his body.
  • The actual blood donation usually takes less than 15 minutes. The entire process -- from the time you sign in to the time you leave -- takes about an hour.
  • You cannot get AIDS or any other infectious disease by donating blood.
  • Thirteen tests (11 for infectious diseases) are performed on each unit of donated blood.