Chest pain
Shortness of breath
Obvious chest injury
Hypotension
JVD
Muffled heart sounds or rub
New murmur (heard best at apex, may be confused for mitral regurgitation)
Myocardial rupture
Acute coronary syndromes 
Coronary artery dissection
STEMI
Pericardial effusion and tamponade
Non-STEMI
Globe rupture
Unstable angina