An EKG is a recording of the electrical activity of the heart. CPK is a muscle protein enzyme which is released into the blood circulation by dying heart muscles when their surrounding membranes dissolve. Most of the patients of a heart attack are managed in a dedicated heart care unit. Early reperfusion minimizes the extent of heart muscle damage and preserves the pumping function of the heart.
Many drugs are available to dissolve the clots and restore blood supply.
The best chances of preventing a second heart attack come from a combination of medications and change of diet and lifestyle.