Final answer:
In addition to chest pain, other indicators of a myocardial infarction include changes in the ECG, elevated levels of creatine kinase MB and cardiac troponin from blood tests, and imaging findings from echocardiography or cardiac magnetic resonance imaging.
Step-by-step explanation:
When suspecting a myocardial infarction (MI), also known as a heart attack, other than chest pain (CP), there are several significant symptoms and tests that can be indicative of an MI. An electrocardiogram (ECG) is crucial, often showing changes in ST and Q components which help differentiate between types of MIs such as ST-elevated MI (STEMI) and non-ST-elevated MI (non-STEMI). Besides imaging techniques like echocardiography or cardiac magnetic resonance imaging, certain blood tests play a vital role. Especially, levels of creatine kinase MB and cardiac troponin are crucial markers as they increase when cardiac muscle cells are damaged and released into the bloodstream.