I had a to give two vaccines to a patient today. I work in peds, so I have done this loads of time before. The office procedure (if they are younger) is to lay the patient on the table. I along with the dad were the only two in the room. I use one arm to hold the legs down, and one hand to give the injections into the thighs. The dad was holding the upper body. However, he failed to secure the kids hand on the side I was giving the first injection. I got the needle in, injected the medicine, and then the kids hand grabs part of the needle, and the needle bends as I was withdrawing it from his leg. That had to be a painful experience, but all was okay. There was no obvious tissue damage, and the patient didn't seem to be in anymore pain than the typical 2 year old receiving shots, and he wasn't bleeding either. Therefore, I moved on to the next vaccine, which I gave in the other thigh. I held a lot tighter this time, and made sure the dad had the child's hands really well too. I insert the needle, inject the medicine, withdraw the needle, only to be met by a stream of blood. I was taught not to pull the syringe back for vaccines because the syringe was 0.5 ml, and was prefilled. I knew that I had hit an artery or a vein, probably an artery because it squirted up in the air a little, and it was pulsing. I grabbed the gauze and pressed and held it on the wound. I held it there until the bleeding stopped which surprisingly was not long at all, probably less than 30 seconds. I put the band-aid on, and all the while I'm trying to maintain my composure because I knew that no lasting damage had been done. I explained to the dad what had just happened, and told him that there may be a bruise to form at the injection site from the bleeding. I told the doctor about what happened with the artery, and he said not to worry about it, that I most likely missed the femoral artery. However, I think I did 'nick' a small area of a branch of the femoral artery. I was in the mid-outer portion of the mid 2/3 of the thigh muscle; however, I probably could have gone over more, and in the future, I will! I still feel really terrible about what happened, and surprisingly the dad didn't seem to care too much, and even more luckily, I don't think I did any lasting damage. I checked in on the patient about 5 to 10 minutes later, and he was doing fine, and was actually walking down the hallway on his way out. It was difficult to maintain my composure because I was nearly freaking out in my head because this had not happened to me before, and I thought I had inflicted more harm than I intended. Have you guys ever experienced such a bad experience when giving injections?