I am a Registered Nurse at a doctor's office. The office is comprised up of seven doctor's, two PA's, four registered nurses, two LPNs, and six medical assistants. Most of the doctors have at least two "nurses" working with them. I use nurses in parentheses because the medical assistants are called nurses. We are all used and viewed interchangeably. Anyway, one nurse is usually assigned to do messages, and the other nurse is assigned to bring back and work up patients. I work with a medical assistant that has been working in the office for a really long time. I am fairly new. The medical assistant loves to take messages. That's pretty much all that she wants to do. The doctor that we work for has the highest patient load in the office. We really think that she needs three nurses but that's neither here nor there. After feeling burned out after constantly being the one to run back patients, I asked my nursing supervisor if we could rotate because it really is too much to keep doing day after day. My supervisor sympathized and said that she agreed and would rotate us with running patients. This went on for about a month. This week, I have been scheduled to run patients every day, while the medical assistant does messages. So I was already upset about this. On top of that, the medical assistant gets off of work an hour early everyday (because she has to pick up her child) so for an hour I have to be the runner and the message taker and whatever messages she doesn't get to, she dumps in my box. So today, she left at her time and dumped seven messages in my box. Today was the busiest day ever. Everyone was coming in with some type of respiratory issue. So for an hour I had to bring patients back and work them up. Respond to overhead pages, and do messages. On top of whatever vaccinations and documentation my doctor needed me to do. I don't think that this is fair. Everytime she does this, I'm late getting home to my own children. I want to say something to my nursing supervisor but honestly I'm just over it. Is it even worth mentioning? And if so, how should I go about it? I was so angry that I just left without seeking out my supervisor. I wanted to wait until I got home and cooled off and then called her, but I decided that I will just get to work early and pull her to the side. What's the most professional way to go about this?