Apatient is having cardiac enzymes drawn to rule out a Myocardial Infarction. a) What are the clinical indication and nursing implications for the following enzymes and their importance as a marker for Myocardial Infarction? 2.A patient has chest pains and is worried of having a second Myocardial Infarction. a) What are the discriminating differences between chest pains from angina pectoris versus the pain associated with Myocardial Infarction.