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FREQUENCY OF BLOOD TYPES
IN THE US POPULATION

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HOW COMMON IS YOUR BLOOD TYPE?
| Type |
1 person in # |
Percent |
| 0 (Rh positive) |
1 person in 3 |
38% |
| 0 (Rh negative) |
1 person in 14 |
7% |
| A (Rh positive) |
1 person in 3 |
34% |
| A (Rh negative) |
1 person in 17 |
6% |
| B (Rh positive) |
1 person in 11 |
9% |
| B (Rh negative) |
1 person in 50 |
2% |
| AB (Rh positive) |
1 person in 33 |
3% |
| AB (Rh negative) |
1 person in 100 |
1% |
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Whole blood is separated
into its component parts for patients needing a particular
product. The main blood collection bag has up to three satellite
bags attached to it. In a centrifuge process, the red cells,
platelets, and plasma are spun, separated and readied for
transfusion.
- Red blood cells are made in the bone
marrow and carry oxygen to the body and remove carbon
dioxide. They are needed for accident victims, certain
surgeries, and patients with anemia and blood disorders.
- Platelets are tiny cells, formed in
the bone marrow, that control bleeding by helping the
blood to clot. The body replaces platelets within 72 hours
of donation. Leukemia and cancer patients need platelets
because chemotherapy destroys their own supply of platelets.
- Plasma is the liquid part of the blood
and makes up 55% of blood volume. It is comprised of 92%
water, 7% protein, and 1% minerals, and is essential in
the clotting/coagulation process. Plasma is used for patients
experiencing heavy bleeding and for burn victims.
- Cryoprecipitate is extracted from
plasma in a freezing and thawing process. This component
contains a specific clotting agent, Factor VIII, missing
in hemophiliacs and essential for controlling bleeding.
Did you know?
- Every 23 minutes, someone in Lane County needs a blood
transfusion.
- Every THREE seconds, someone in the United States needs
a blood transfusion.
- One out of every TEN people entering a hospital will
need blood.
- Approximately 35,000 units of blood are used EACH day
in the United States.
- SIXTY PERCENT of the US population is eligible to donate–only
FIVE PERCENT does on an annual or more frequent basis.
- Blood used to treat victims of a disaster is blood
that was already on the blood bank shelves.
- Most people have between 10-12 pints of blood. A newborn
baby has about one cup of blood.
- There is NO substitute for human blood.
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