Diagnosing Heart Attack

If you think you are having a heart attack, call 911 immediately.

Tests may include:

• Blood tests-to look for certain enzymes found in the blood within hours or days after a heart attack
• Urine tests-to look for certain substances found in the urine within hours or days after a heart attack
• Electrocardiogram (EKG) -records the heart's activity by measuring electrical currents through the heart muscle, changes can show if there is blockage or damage
• Echocardiogram -uses high-frequency sound waves (ultrasound) to examine the size, shape, function, and motion of the heart
• Stress test -records the heart's electrical activity under increased physical stress, usually done days or weeks after the heart attack
• Nuclear scanning-uses radioactive material to show areas of the heart muscle where there is diminished blood flow
• Electron-beam computed tomography (EBCT) -a type of x-ray that uses a computer to make detailed pictures of the heart, coronary arteries, and surrounding structures; may be helpful if you are at immediate risk of coronary artery disease
• Coronary angiography -uses dye and x-rays to look for narrowing or blockage in the coronary arteries