Occasionally useful for other things like suspected gastroenteritis from food poisoning, but usually you'll start to suspect this based on the patient's story of the events leading up to activating EMS.
Have you had a rash like this before? medications; if you ask them this question directly, they are more likely to answer honestly because they realize you are asking it for a reason emphasize its importance.
Acronyms may vary slightly to a lot depending on your location and school too so don't think that somebody is unknowledgeable because their acronym is slightly different from yours or they are not familiar with one you use.
