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Blood is made up of three main components:
Red Cells, Plasma and Platelets
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Shelf Life of each component:
Red Cells – 42 days
Platelets – 5 days
Plasma – 1 year
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White cells are the body’s primary defense against infection.
Granulocytes, a type of white blood cell, roll along blood vessel walls in search of bacteria to eat.
There are four main blood types: A, B, AB
and O.
Type O+ blood is the most common, most frequently used blood type.
Type O- is the universal donor since most
people can accept this type of blood regardless of their blood type.
Type AB is the universal recipient, since people with this blood type can normally accept all blood types.
60% of the population is medically eligible to give blood, yet only 5% of the national population donates blood.
If all blood donors gave 2 to 4 times a year, it would help prevent blood shortages.
4.5 million Americans would die each year without life saving blood transfusions
Every three seconds someone needs blood.
About three gallons of blood supports the entire nation’s blood needs for one minute.
Car accident victims who have suffered
massive blood loss can need transfusions of 50 pints or more of red blood
cells.
The average bone marrow transplant requires
120 units of platelets and about 20 units of red blood cells.
Severe burn victims can need about 20 units
of platelets during their treatment.
Children being treated for cancer, premature
infants and children having heart surgery need blood and platelets from
donors of all types.
Anemic patients need blood transfusions to
increase their iron levels.
Cancer, transplant and trauma patients, and
patients undergoing open-heart surgery require platelet transfusions to
survive.
Some patients with complications from severe
sickle cell disease, an inherited disease that affects more than 80,000
people in the United States (98% of whom are of African descent), receive
blood transfusions every month - up to 4 pints at a time.
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