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Blood Transfusion

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Overview

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How is blood collected?

Blood banks collect blood from volunteer donors. Before they donate, volunteers must answer questions about their current health, health history, and any diseases they may have been exposed to through travel to foreign countries, sexual behavior, or drug use. Only people who pass this survey are allowed to donate blood.

Donated blood is then carefully tested for certain diseases and to find out the blood type. If there is any chance that the blood may not be safe to use, it is thrown away.

Most blood that passes the tests is then split into its components and sent out for use.

Blood and its components can be stored or used for only a short time before they must be thrown away. This is why blood banks are always looking for donors.

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WebMD Medical Reference from Healthwise

Last Updated: December 13, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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