After 166 posts your asking aspiration details????? When you inject into a muscel you need to draw the needle up to ensure there is no blood, long story short and also to leave the needle in for 30 secs after pnning
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After 166 posts your asking aspiration details????? When you inject into a muscel you need to draw the needle up to ensure there is no blood, long story short and also to leave the needle in for 30 secs after pnning
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