
Originally Posted by
zebra
How much are you injecting at each site?
22G is a pretty large needle. Depending on how viscous the medication is, I would go with a 23G or 25G. I have given thousands of IM injections, and I started using 27G 1 1/4" on most people (in the deltoid,) and they work just fine. This is mainly vaccines, which are not thick.)
My guess is that with that large gauge needle, you are probably injecting too fast. Smaller diameters and longer lengths increase resistance. You can bolus stuff in through a large gauge needle, and you don't really want to do that into a muscle.
Put the needle in quickly..like a dart, Aspirate, then inject slowly. Leave the needle in for a second after you finish injecting. Pull the needle out and then massage the area with a fair amount of pressure for a minute.