Blood draw
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![Blood Draw](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/USMC-11162010-M-4178N-181.jpg/220px-USMC-11162010-M-4178N-181.jpg)
Blood draw is when blood gets taken from a vein using a hypodermic needle. It is stored in special blood bottles. These bottles are called vacutainers. There is usually a liquid or mist in the bottle that moves blood inside it.