CCRN Critical Care Nursing

Answer: C - The sign that would be most indicative that Thrombolytic Therapy has been successful in the patient who has had a myocardial infarction and is four hours into Thrombolytic Therapy is a return of the ST interval to normal on the electrocardiogram (EKG). Other signs thrombolytic therapy has been effective include relief of chest pain and improved left ventricular function.