what am I doing wrong?

I would try alternating sites. If you havent tried the other leg, maybe try the deltoid, depending on the dosage. I have given B-12 injections in the deltoid and it went fine, as long as its not a huge dose. There is a limit to what you can inject in the deltoid, I beleive its 1ml. Hopefully that helps.

What size needle are you using and how much of the needle goes in when you give the injection? I could be wrong but it sounds like maybe you are not going deep enough, so the medicine is under the skin rather than in the muscle.

i have usually given in the deltoid also

if i'm just paranoid hopefully others will write in but i'd be concerned that you would be liable if something happened such as anaphylaxis or skin necrosis resulting in sepsis etc. i know it would be rare but with my luck bingo. i wouldn't chance anything that might result in not getting licensed or jeopardize my nursing license. i won't do anything for anyone that isn't my patient with the exception of immediate family members. i don't even take fellow employees blood pressure, they can work the machine themselves and decide what to do with the data.

i thought of this too but didn't mention it. you might want to think carefully about providing this service; what happens if one day you hit a nerve when giving an injection in the buttock? or he has a reaction?

some nurses i know will not even give a friend a tylenol out of their purse for fear it will be construed as dispensing or prescribing. if you think we're being paranoid, you may be right, but many nurses are - it takes a lot to get your license and you don't want to jeopardize it in any way.

Go back to the hospital, show it and ask if you are concerned. What can we do here without knowing what is going on?

Another issue. I don't know this for sure first of all. Since the nurse taught you how to do this injection, I am assuming it would be something where family or patient self can administer it at home, just like insulin subcut injections. In this case, a friend is administering per patient request. Or maybe the nurse was just talking through it, hoping the patient will be back with the nurse to get routine administration. I wonder this; did they say it is okay to administer it at home by you?