ST-elevation myocardial infarction (STEMI) is a type of [“heart attack”: link to new heart attack content] caused by total blockage of one of the coronary arteries that supplies oxygen-rich blood to the heart. Acute STEMI is a life-threatening medical emergency also known as sudden cardiac arrest or massive heart attack.
Electrocardiogram (ECG). Measures of cardiac electrical activity can signal the need for immediate treatment.
Blood testing. Cardiac enzymes in the blood can confirm a heart attack has occurred and help determine the extent of damage.
Cardiac catheterization. This procedure involves threading a catheter tube from a blood vessel in the arm, groin or neck to the heart and using it to inject dye into the blood vessels for enhanced visibility on X-rays called angiograms