Complete Blood Count
 

Procedure - Complete Blood Count

A CBC requires a simple blood drawing. Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. Preparation: There is no special preparation needed for this test. How the test will feel: When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. After the blood is drawn, there may be some throbbing. There are a few slight risks associated with a CBC: Excessive bleeding. Fainting or feeling lightheaded. Hematoma (blood accumulating under the skin). Infection (a slight risk any time the skin is broken). Multiple punctures to locate veins.


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