What is a heart attack?
As we all know heart is the organs in our body responsible to supply blood to our entire body. The heart receives blood through the coronary arteries. Myocardial infarction is generally called heart attack. The heart attack happens when one of the arteries that supply blood to the heart gets suddenly blocked. Which may damage the part of the heart that receives the blood from that particular artery. The damage caused to the heart depends on how long the artery will remain blocked.
When plaques, actually fatty deposits, formed on the inner walls of the coronary arteries sometimes break-open, then blood clots are formed. These blood clots may then block off the artery which stops the blood supply to that part of the heart. So this plaque rupture and clot formation is what causes the most heart attacks.
The fatty plaques inside the coronary arteries can also limit blood flow to the heart muscle, which may cause pain or tightness in the chest. This pain is generally called angina
What are the symptoms of a heart attack?
People having a heart attack often notice:
Shortness of breath
Sweating or cold
Uneven heartbeat (palpitation)
Pain and discomfort in the chest
Pain in the upper body parts
Nausea or vomiting
Test for heart attacks?
If your doctor feels you are having a heart attack, he might advise you to have one or more of the following tests:
An electrocardiogram (ECG) – This will measures the electrical activity in your heart.
Blood tests – Certain chemicals are released by the heart when there is a heart attack, which can be confirmed by some blood tests.
Cardiac catheterization – This test is done to see if there is any blood clot in the arteries supplying blood to heart.