Very strange getting an MRI yesterday and getting told to make sure I had no metal objects on or in my body, filling out multiple questionaries to that effect, and having a poster in the changing room reminding again to remove all piercings, etc. that it was totally fine that I still had the IV needle for the contrast solution in my arm the entire time that I was in the machine. I asked them twice as I was going in just to make sure. And it was fine.