Your past experience reminded me of a funny experience. So a 1st grade comes in and the Nurse pass says chest pain and heart hurts. Of course I do a full assessment and am ready to call EMS, then I asked the 7 year old if she could point to where the pain was and I swear the child pointed to his belly button. Very quickly I learned children are not the most accurate story tellers or historians. Oh and the pain started after his birthday party which was 2 weeks ago. So take all info even from the teachers and staff with a huge grain of salt. Most "head injuries" in this group amounts to a slight bump, always have them demonstrate on you with their fist how hard they hit their head. Remember it might be staff that is sending the child to cover their ass. Many times "vomited in class" is more like spit up from coughing, mucous, or eating too fast. I usually take a small water cup and ask them to point how far up on the cup the puke they spit up would measure to, a lot of times it's really not vomiting. For elementary school keep it simple, follow your medical directors orders as you will mostly see: stomachaches, headaches, seasonal allergy symptoms, abrasions, bathroom accidents, chapped lips, lost or wiggly teeth, asthma control, diabetic management, seizure precautions, food allergy management, and a whole lot of nonsense wrapped in staff politics.