Answer and Explanation 12

12.  The correct answer is A.  This patient has a new onset left bundle branch block and should be treated as a STEMI.  This patient should be evaluated for an emergent cardiac catheterization.  Ativan would not be helpful.  Choice C is not helpful because the patient has not been symptomatic long enough to be positive.  Choice D is incorrect because a dissection does not show any specific EKG abnormality.