I personally would not write "intubate for myasthenia gravis" because they won't have a clue what that means and they are not going to intubate you because your bracelet says so. Just saying you have MG is very helpful. My son is an EMT and in an ambulance they are lucky if they even check for a bracelet (they usually don't.) In an emergency setting they are only to read a couple of words. Having more info they can access when they are gathering more info is great.