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Originally Posted by Uncle Ric

Nope and my wife is an RN. The newest guidlines for her in the hospital say not to aspirate for IM injections. That if you are doing it right you are not close enought to a major blood vessel.

Yup, this is true.

The Center for Disease Control says not to aspirate anymore. They said the damaged caused by it, in both increased pain and inflammation in the muscle, did not outweigh the slim chance of injecting directly into a vein.