Please excuse my skepticism, but I agree with Fiona59. This sounds more like a homework question than an emergency action plan or 504 plan that would be written in the school setting.
I have never used nursing diagnosis terminology in a school based plan. No one but me would understand it.
If you are truly writing a plan for a student in the school setting with limited ability to communicate acute distress, I would suggest that you use wording that lay people will understand, such as clear description of a child experiencing a severe allergic reaction. You can go head to toe, or system by system listing obvious signs and symptoms of anaphylaxis, then give step by step instructions of the necessary actions, including calling for help, obtaining the child's Epi-pen and other emergency meds, calling 911 and the parents, etc.