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How Much Blood Is Needed?

Modern medicine has made complex and life-saving surgeries possible. However, without a safe and plentiful supply of blood, no one would benefit from these advances. It is easy to see, with the chart below, that every donation counts.

Liver transplant6-10 units of red blood cells
20 units of plasma
10 units of platelets
Kidney transplant1-2 units of red blood cells
Heart transplant4-6 units of red blood cells
Adult open heart surgery2-6 units of red blood cells
2-4 units of plasma
1-10 units of platelets
Newborn open heart surgery1-4 units of red blood cells
1-2 units of plasma
1-4 units of platelets
Prostate cancer surgery2-4 units of red blood cells
Abdominal aortic aneurysm4-6 units of red blood cells
Bone marrow transplant1-2 units of red blood cells every other day for 2-4 weeks
6-8 units of platelets daily for 4-6 weeks
Automobile accident4-40 units of red blood cells
Leukemia2-6 units of red blood cells
6-8 units of platelets daily for 2-4 weeks
Sickle cell disease10-15 units of red blood cells to treat severe complications
Premature newborn1-4 units of red blood cells while in Intensive Care
Source:
Jeffrey McCullough, M.D.
Center for Molecular and Cellular Therapy
University of Minnesota
Date Posted: 04/17/01

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