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Blood Facts
   
There are four main Blood types: A, B, AB and O.
   
Blood makes up about 7% of your body's weight.
   
Every year our nation requires about 4 Crore units of blood, out of which only a meager 40 Lakh units of blood are available.
   
A total of 30 million blood components are transfused each year.
   
One standard unit or pint of Blood equals about two cups.
   
There are about one billion red Blood cells in a few drops of whole Blood.
   
Platelets must be used within five days.
   
Sickle cell patients can require frequent blood transfusions throughout their lives.
   
The gift of blood is the gift of life. There is no substitute for human blood.
   
A single car accident victim can require as many as 100 units of blood
   
Platelets are small Blood cells that assist in the process of Blood clotting helping those with leukemia and other cancers, controlling bleeding.
   
Blood Plasma constitutes 55% of the volume of human Blood.
   
Human Blood; red Blood cells, white Blood cells, plasma and platelets are made naturally by the body in the bone marrow.
   
Red Blood cells live about 120 days in our bodies.
   
There are about one billion red Blood cells in a few drops of whole Blood. 
   
Plasma helps maintain Blood pressure, carries Blood cells, nutrients, enzymes and hormones, and supplies critical proteins for Blood clotting and immunity.
   
Type AB plasma has been considered as the universal Blood plasma type, and therefore AB plasma is given to patients with any Blood type.
   
Human Blood; red Blood cells, white Blood cells, plasma and platelets are made naturally by the body in the bone marrow.
   
Frozen Plasma can be stored for up to one year.
   
An average adult has about 14 to 18 pints of Blood. 
   
There is no substitute for human Blood
   
Each Blood type is either Rh positive or negative. 
   
More than 38,000 blood donations are needed every day.