I suspect, in your case, if a doctor was called by the nurse you would then be hit with a consult fee.
This was explained to me when I walked into a glass door on X Solstice. I grazed my forehead so went to the sick bay thinking I should report any injury. The nurse explained that if I wanted it recorded she would have to call the doctor to have a look at it, log it and charge me USD100. If I let her look at the injury and slap a band aid on it, then there was no charge.