Question

10 points about blood donation

Answer 1

blood donation happens when a person voluntarily agrees for his / her blood to be extracted and donated to a person in need. it is an altruistic gesture as the donated blood may be used for an emergency transfusion or can be separated into individual components to be used later.

blood donations

1. annually around 112.5 million units of donated blood are collected globally.
2. approximately around 13.6 million units of whole blood and red blood cells are collected in the u.s. every year, and nearly 21 million units of blood components are transfused each year in the u.s.
3. according to the world health organization , india suffers from an annual deficit of two million blood units, as only 1% of indian population donates blood each year.
4. approximately around 36000,  7000 and 10000 units of red blood cells, platelets and plasma are needed daily in the u.s.
5. the major human blood groups -A,B,AB and O were first identified and classified by Dr.Karl Landsteiner in 1901. they cannot be artificially manufactured but can be obtained from generous doctors.