I am Rh pos so I never personally experienced the rhogam injections, but I give them all the time. Unless the woman makes a request to have it in her arm I give them in the hip, it's quite a bit of fluid to be giving in the arm, so I shoot for the bigger muscle in the hip because it usually doesn't cause as much irritation. It's a matter of personal preference, either muscle is ok.
I found it to be the most painfully needle I ever had the first time, at the time I put it down to the plasma that made it a thicker liquid. But the second time it didn't hurt at all. The first time I had a mild reaction but that was no cause for alarm just a small rash second time nothing.
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