Consider discharge after 9-12 hour observation if<unk>  free, no EKG changes and negative serial troponin
In NEJM study, 334 patients studied. If both EKG and troponins negative, no deaths from cardiovascular events at 30 days. 4 patients did have non-fatal MI's but were using<unk>  at the time.
Otherwise admit
In NEJM study, 334 patients studied. If both EKG and troponins negative, no deaths from cardiovascular events at 30 days. 4 patients did have non-fatal MI's but were using<unk>  at the time.
Cocaine-associated chest pain
Acute coronary syndromes 
Unstable angina
STEMI
Stable angina
Non-STEMI
Takotsubo cardiomyopathy
Vincent's angina