How can you tell angina from gerd or acid reflux. are there any clinical tests that can accurately rule out or confirm angina while happening. thanks.

NO: An ekg done during angina can rule it in, if it's acutely abnormal but it can't rule it out. No clinical test can. A stress test is typically used within 24 hours of atypical pain to determine if there is inducible ischemia (poor circulation provoked by exercise or drug effects). But the DX of angina is a clinical DX - when it's unclear, one is admitted for observation for blood samples and ekgs.