What does an ECG test for?
During a heart attack, the blood supply that normally nourishes the heart with oxygen is cut off and the heart muscle begins to die. Heart attacks — also called myocardial infarctions — are very common in the United States. In fact, it’s estimated that one happens every 40 seconds.
Some people who are having a heart attack have warning signs, while others show no signs. Some symptoms that many people report are:
upper body pain
A heart attack is a serious medical emergency. Seek immediate medical attentionif you or someone you know is experiencing symptoms that could signal a heart attack.
There are a few cardiac conditions that can cause heart attacks. One of the most common causes is plaque buildup in the arteries (atherosclerosis) that prevents blood from getting to the heart muscle.
Heart attacks can also be caused by blood clots or a torn blood vessel. Less commonly, a heart attack is caused by a blood vessel spasm.
Fast facts on heart attacks:
- During a heart attack, the heart muscle loses blood supply and is damaged.
- Chest discomfort and pain are common symptoms.
- The risk of a heart attack increases when a man is over 45 and a woman is over 55.
- Smoking and obesity are big factors, particularly in the at-risk age range