ECG +/- telemetry
Troponin if possible acute event
Rule out unstable<unk> :
New<unk> <unk>  at rest
Accelerating frequency or severity
Assess:
Changes in<unk>  or heart failure symptoms
Adherence to prescribed medications
Changes in medications
Medication side effects
Changes in<unk>  or heart failure symptoms
Adherence to prescribed medications
Changes in medications
Medication side effects
Resting heart rate and blood pressure
Signs of heart failure
New dysrhythmia
New or worsening vascular bruits or murmurs
Status of abdominal aorta
Stable angina
Acute coronary syndromes 
Unstable angina
STEMI
Vincent's angina
Non-STEMI
STEMI equivalents
ST-segment elevation myocardial infarction