PATHOLOGY MCQ
HEART
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
lack of adequate blood supply to the heart muscle
|
|
|
a rapid uncoordinated quivering of the ventricles
|
|
|
rapid heart rate over 100 beats per minute (bpm)
|
|
|
heart rate that is substantially slower than normal, less than 60 beats per minute (bpm)
|
Detailed explanation-1: -Ischemic means that an organ (e.g., the heart) is not getting enough blood and oxygen. Ischemic heart disease, also called coronary heart disease (CHD) or coronary artery disease, is the term given to heart problems caused by narrowed heart (coronary) arteries that supply blood to the heart muscle.
Detailed explanation-2: -Myocardial ischemia occurs when blood flow to your heart is reduced, preventing the heart muscle from receiving enough oxygen. The reduced blood flow is usually the result of a partial or complete blockage of your heart’s arteries (coronary arteries).
Detailed explanation-3: -Myocardial ischemia is a lack of blood flow getting to your heart muscle. That means your heart muscle isn’t getting enough blood to do what it needs to do. Often, the cause is a collection of fat and cholesterol (plaque) that doesn’t let enough blood go through your coronary arteries.
Detailed explanation-4: -Ischemia is an absolute or relative shortage of the blood supply to an organ, i.e. a shortage of oxygen, glucose and other blood-borne fuels. A relative shortage means the the blood being supplied is inadequate to maintain tissue metabolism. Ischemia results in tissue damage because of a lack of oxygen and nutrients.