When you: Give blood, a technician inserts a needle into a suitable vein and places the container below your body. The combination of blood pressure and gravity cause the blood to flow into the container. This procedure is generally painless and you are giving the gift of life to someone in need.
Answered 1/2/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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