Is there a difference between a heart attack and cardiac arrest?

Yes... Cardiac arrest is when the heart actually stops. A heart attack is due to decreased blood flow to a part of the heart muscle. A heart attack can lead to cardiac arrest, but not always. And, there are other etiologies of cardiac arrest besides heart attack.
Yes. In a heart attack a heart artery is blocked, usually by a blood clot, and causes damage to a portion of the heart. While this can be fatal, most people with a heart attack survive with early recognition and treatment. Cardiac arrest is actual stoppage of the heart beating, which can be caused by many things and is rapidly fatal unless immediate CPR and advanced emergency techniques are applied.
No. A heart attack-or "myocardial infarction"-occurs when the blood and oxygen supply to a part of the heart is interrupted due to blockage of one or more of the arteries supplying blood to the heart. This causes the part of the heart supplied by that artery to die if the blockage is not opened very quickly. Cardiac arrest refers to a heart rhythm disturbance-most commonly ventricular fibrillation.

Related Questions

What is the difference between a cardiac arrest and a heart attack?

Difference..... A heart attack is when the heart muscle is not getting the blood supply it needs. The part of the heart not receiving enough blood is at risk to die. Cardiac arrest is when the heart stops beating entirely. One of the many causes of cardiac arrest is a heart attack or myocardial infarction (mi). Both are life-threatening and require an immediate 911 call. Read more...

Whats the difference between cardiac arrest and heart attack and their symptoms?

Cardiac arrest. the heart STOPS an needs to be restarted .....or Cardiopulmonary resuscitation begun or death occurs... IT IS A FORM OF HEART ATTACK which is a more GENERAL term for any acute heart issue (coronary etc) Hope this is helpful! Dr z. Read more...

My mom recently had a heart attack and cardiac arrest and was revived. The doctor said she had an old heart. What does this mean? Can it strengthen?

Damaged muscles. I guess he means the overall condition of her heart doesn't match a normal heart of her age. With each heart attack we lose the strength of some of the muscle. Sometimes its partially reversible, due to collateral circulation that may develop . Needs to be followed closely and maintain her blood pressure and cholesterol below normal range. There are some incidental studies showing benefit of coq10. Read more...