A Cardiac Interventional Center may receive STEMI patients transported by ambulance directly to the catheterization lab when approved by the base station physician if the catheterization lab has a physician, appropriately credentialed to evaluate and stabilize an acute cardiac patient, a registered nurse, and a technician, capable of activating the catheterization lab, immediately available in house when: The 12 lead EKG in the field is interpreted by an advanced life support EMS provider as a high probability of a STEMI; or The 12 lead EKG in the field has been reviewed by an ED physician, a cardiologist, or both, and determined to be a STEMI.