A nurse is collecting data from a client who has an acute myocardial infarction (MI). Which of the following clinical manifestations should the nurse expect to find? (Select all that apply.)

A. Orthopnea: Orthopnea indicates left-sided heart failure/congestive symptoms and may develop with MI-related pump failure, but it is not a classic acute MI presenting symptom. B. Tachycardia: Sympathetic activation, pain, anxiety, or cardiogenic compromise commonly cause tachycardia during acute MI. C. Diaphoresis: Profuse sweating (diaphoresis) is a common autonomic response to myocardial ischemia. D. Nausea: Nausea, sometimes with vomiting, is a common associated symptom of acute MI (particularly inferior wall MI). E. Headache: Headache is not a usual sign of acute MI and is not commonly associated with myocardial ischemia.