Answer: 2 hours
The other term for heart attack is myocardial infarction (MI) and these
occurs when the blood flow
that brings oxygen to the heart muscle is severely reduced or cut off completely
due to blood clot or the heart muscle become narrow from a buildup of fat,
cholesterol and other substances that together are called plaque.
The heart muscle
starts to die within 80-90 minutes after it stops getting blood supply, and
this critical time is a window of
opportunity that influences a patient's survival and quality of life following
a heart attack. If no medical intervention is done within two hours from the
onset of symptoms, death occurs.
