Heart attack - How is the diagnoses of heart attack ?

Heart attack can be  diagnosed by Doctor  based on the signs and symptoms, family histories, and test results.

Diagnostic Tests EKG (Electrocardiogram) An EKG is  painless test that detects and records the heart's electrical activity. The method of test is detect  how fast the heart  beating and its rhythm (steady or irregular). An EKG also records the strength and timing of electrical signals as they pass through each part of the heart. An EKG can show signs of heart damage due to coronary heart disease (CHD) and signs of a previous or current heart attack.

Blood Tests During a heart attack, heart muscle cells die and release proteins into the bloodstream. Blood tests can measure the amount of these proteins in the bloodstream. Higher than normal levels of these proteins suggest a heart attack.

Commonly used blood tests include troponin tests, CK or CK–MB tests, and serum myoglobin tests. Blood tests often are repeated to check for changes over time.

Coronary Angiography

Coronary angiography  is a test that uses dye and special x rays to show the insides of your coronary arteries. This test often is done during a heart attack to help find blockages in the coronary arteries. To get the dye into your coronary arteries, Doctor will use a procedure called cardiac catheterization . A thin, flexible tube called a catheter is put into a blood vessel in your arm, groin (upper thigh), or neck. The tube is threaded into your coronary arteries, and the dye is released into  bloodstream. Special x rays are taken while the dye is flowing through the coronary arteries. By The dye,  doctor will study the flow of blood through the heart and blood vessels. If  the result, found the flow got  blockage,patient  may recommend a procedure called angioplasty . This procedure can help restore blood flow through a blocked artery. Sometimes a small mesh tube called a stent is placed in the artery to help prevent blockages after the procedure.