The cost of the three tests for heart attack is about 200-300 dollars. However, due to the different levels of hospitals and different regions, the specific cost varies to a certain extent. Cardiac infarction triple test is of great significance in diagnosing myocardial infarction and evaluating the effect of thrombolytic therapy, and it is one of the most commonly used cardiac infarction tests at present. The three tests mainly include cardiac troponin, myoglobin and creatine kinase isoenzyme. The arm must remain stationary during blood collection. If your arm becomes painful or numb due to a tight tourniquet, you should tell your doctor immediately. In order to avoid the needle puncturing the blood vessel or the needle breaking off inside the blood vessel, the arm should not be shaken on its own. In addition, it is recommended that patients who need to do the heart attack three items go to a regular hospital and perform this test under the correct operation of the doctor.