You should give one, non-coated 325 mg aspirin to a patient who has any of the following signs or symptoms of ACS. They include:
Uncomfortable pressure, fullness, squeezing or pain in the center of the chest that lasts more than a few minutes or goes away and comes back
Pain that spreads to the shoulders, neck or arms
Chest discomfort with lightheadedness, fainting, sweating, nausea or shortness of breath
You also may give an aspirin to a patient who exhibits any TWO of the following signs or symptoms when ACS is suspected:
Atypical chest pain, stomach or abdominal pain. This may include discomfort that can be localized to a point, that is “sharp” in nature, that is reproducible by palpation or that is in the “wrong” location (such as the upper abdomen).
Unexplained nausea (without vomiting) or lightheadedness (not vertigo) without chest pain
Shortness of breath and difficulty breathing without chest pain
