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Coronary Artery Disease and Cardiac Physiology Quiz

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#1

Which of the following is NOT a risk factor for Coronary Artery Disease (CAD)?

Regular exercise
Explanation

Regular exercise reduces the risk of CAD.

#2

What is the primary function of the coronary arteries?

To carry oxygen-rich blood to the heart muscle
Explanation

Coronary arteries supply oxygen-rich blood to the heart muscle.

#3

Which of the following medications is commonly prescribed to reduce cholesterol levels in patients with Coronary Artery Disease?

Statins
Explanation

Statins are prescribed to reduce cholesterol levels.

#4

What is the term for the measurement of pressure in the arteries when the heart muscle contracts?

Systolic pressure
Explanation

Systolic pressure measures artery pressure during heart contraction.

#5

Which of the following imaging techniques is commonly used to diagnose Coronary Artery Disease by visualizing blockages or narrowing in the coronary arteries?

X-ray (Angiography)
Explanation

X-ray (Angiography) is used to visualize coronary artery blockages.

#6

What is the term for the condition characterized by a sudden blockage of blood flow to the heart muscle, typically due to a blood clot?

Heart attack
Explanation

Heart attack is caused by sudden blockage of blood flow.

#7

Which enzyme is primarily responsible for breaking down triglycerides in the body?

Lipoprotein lipase
Explanation

Lipoprotein lipase breaks down triglycerides.

#8

Which of the following is a characteristic symptom of stable angina?

Pain that occurs during physical exertion and is relieved by rest or medication
Explanation

Stable angina causes pain during exertion, relieved by rest or meds.

#9

Which of the following factors is responsible for the initiation of atherosclerosis?

Chronic inflammation
Explanation

Chronic inflammation initiates atherosclerosis.

#10

What is the primary function of the sinoatrial (SA) node in the heart?

To initiate the heartbeat by generating electrical impulses
Explanation

SA node initiates heartbeat via electrical impulses.

#11

Which of the following hormones plays a key role in regulating blood pressure and fluid balance in the body?

Aldosterone
Explanation

Aldosterone regulates blood pressure and fluid balance.

#12

What is the term for the period of relaxation and filling of the heart chambers during the cardiac cycle?

Diastole
Explanation

Diastole is the heart's relaxation and filling phase.

#13

Which heart chamber receives oxygenated blood from the lungs?

Left atrium
Explanation

Left atrium receives oxygenated blood from the lungs.

#14

Which coronary artery is often referred to as the 'widowmaker' due to its critical role in supplying blood to a large portion of the heart muscle?

Left anterior descending artery
Explanation

Left anterior descending artery supplies critical blood to the heart.

#15

Which of the following conditions is characterized by an abnormal heart rhythm that is too fast, too slow, or irregular?

Arrhythmia
Explanation

Arrhythmia is an abnormal heart rhythm.

#16

Which of the following is NOT a potential complication of Coronary Artery Disease?

Gallbladder disease
Explanation

Gallbladder disease is not a complication of CAD.

#17

Which of the following diagnostic tests uses sound waves to create images of the heart and evaluate its structure and function?

Echocardiogram
Explanation

Echocardiogram uses sound waves to image the heart.

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