Free Printable Cardiology Quiz

1.

Which chamber of the heart has the thickest wall?

a)

a) Left atrium

b)

b) Right atrium

c)

c) Left ventricle

d)

d) Right ventricle

2.

What is the function of the aortic valve?

a)

a) Regulate blood flow into the pulmonary arteries

b)

b) Prevent backflow from the aorta into the left ventricle

c)

c) Maintain blood flow to the right atrium

d)

d) Facilitate oxygen exchange in the lungs

3.

What are the atrioventricular valves?

a)

a) Pulmonary and aortic valves

b)

b) Mitral and tricuspid valves

c)

c) Semilunar valves

d)

d) Pulmonary and mitral valves

4.

Which structure initiates the electrical impulse that causes the heart to beat?

a)

a) Purkinje fibers

b)

b) AV node

c)

c) SA node

d)

d) Bundle of His

5.

What occurs during systole?

a)

a) Atria fill with blood

b)

b) Ventricles relax

c)

c) Ventricles contract and pump blood

d)

d) Valves open to allow atrial filling

6.

Which valve prevents backflow into the right ventricle?

a)

a) Mitral valve

b)

b) Pulmonary valve

c)

c) Aortic valve

d)

d) Tricuspid valve

7.

What is the role of coronary arteries?

a)

a) Transport oxygenated blood to the lungs

b)

b) Supply oxygen and nutrients to the heart muscle

c)

c) Drain blood from the myocardium to the lungs

d)

d) Pump blood from the atria into ventricles

8.

Which wave in the ECG represents atrial depolarization?

a)

a) P wave

b)

b) QRS complex

c)

c) T wave

d)

d) U wave

9.

What is the function of the AV node?

a)

a) Generate impulses faster than the SA node

b)

b) Slow down the impulse to allow ventricular filling

c)

c) Increase heart rate during exercise

d)

d) Maintain blood pressure

10.

Which vessel transports oxygen-poor blood to the lungs?

a)

a) Pulmonary artery

b)

b) Pulmonary vein

c)

c) Aorta

d)

d) Vena cava

11.

Which coronary artery supplies blood to the SA node in most people?

a)

a) Left coronary artery

b)

b) Right coronary artery

c)

c) Circumflex artery

d)

d) Anterior descending artery

12.

What is the function of the chordae tendineae?

a)

a) Transmit electrical impulses

b)

b) Close the semilunar valves

c)

c) Prevent valve prolapse

d)

d) Open the pulmonary valve

13.

What does the T wave on an ECG represent?

a)

a) Atrial depolarization

b)

b) Ventricular repolarization

c)

c) Atrial contraction

d)

d) Ventricular depolarization

14.

What does the P wave on an ECG indicate?

a)

a) Atrial relaxation

b)

b) Ventricular contraction

c)

c) Atrial depolarization

d)

d) Ventricular repolarization

15.

Where does gas exchange occur in the circulatory system?

a)

a) Arteries

b)

b) Veins

c)

c) Capillaries

d)

d) Pulmonary trunk

16.

What effect does vagal stimulation have on the heart?

a)

a) Increases heart rate

b)

b) Decreases heart rate

c)

c) Increases blood pressure

d)

d) Increases ventricular contraction

17.

What causes the heart sounds heard through a stethoscope?

a)

a) Blood moving through veins

b)

b) Valves opening and closing

c)

c) Electrical impulses in the heart

d)

d) Ventricular contraction

18.

What condition occurs when the heart cannot pump enough blood to meet the body’s needs?

a)

a) Myocardial infarction

b)

b) Heart failure

c)

c) Cardiac arrest

d)

d) Atrial fibrillation

19.

What does stroke volume measure?

a)

a) Blood pumped per minute

b)

b) Blood pumped per beat

c)

c) Blood pressure during systole

d)

d) Blood volume in the veins

20.

Which phase of the cardiac cycle occurs when the AV valves are closed?

a)

a) Early diastole

b)

b) Late diastole

c)

c) Systole

21.

What condition is characterised by uncoordinated electrical activity in the atria?

a)

a) Atrial flutter

b)

b) Atrial fibrillation

c)

c) Ventricular tachycardia

d)

d) AV block

22.

What term describes the amount of blood ejected from the left ventricle per minute?

a)

a) Stroke volume

b)

b) Ejection fraction

c)

c) Cardiac output

d)

d) Heart rate

23.

What happens to the coronary arteries during ventricular diastole?

a)

a) They constrict

b)

b) They dilate

c)

c) They fill with blood

d)

d) They collapse

24.

What is the role of the papillary muscles?

a)

a) Close the semilunar valves

b)

b) Open the atrioventricular valves

c)

c) Prevent prolapse of the AV valves during ventricular contraction

d)

d) Control the speed of electrical conduction

25.

What is afterload?

a)

a) The amount of blood ejected during systole

b)

b) The resistance the left ventricle must overcome to eject blood

c)

c) The heart rate during exercise

d)

d) The preload after ventricular contraction

26.

What is ejection fraction?

a)

a) Blood pumped per minute

b)

b) Blood ejected from the atria

c)

c) Percentage of blood pumped from the ventricle with each beat

d)

d) Stroke volume divided by heart rate

27.

What is the normal duration of the PR interval?

a)

a) 0.12-0.20 seconds

b)

b) 0.08-0.10 seconds

c)

c) 0.30-0.40 seconds

d)

d) 0.25-0.35 seconds

28.

What is the role of the AV node in heart conduction?

a)

a) Pump blood into the ventricles

b)

b) Speed up the electrical signal

c)

c) Slow the signal to allow ventricular filling

d)

d) Close the heart valves

29.

What does an elevated ST segment on an ECG indicate?

a)

a) Atrial fibrillation

b)

b) Myocardial infarction

c)

c) Ventricular tachycardia

d)

d) Sinus arrhythmia

30.

Which compensatory system retains sodium and water to increase blood volume?

a)

a) Sympathetic nervous system

b)

b) Renin-angiotensin-aldosterone system (RAAS)

c)

c) Parasympathetic nervous system

d)

d) Natriuretic peptides

31.

What causes pulmonary oedema in heart failure?

a)

a) Right ventricular overload

b)

b) Left-sided heart failure

c)

c) Low blood pressure

d)

d) Neurohormonal suppression

32.

What is the primary action of spironolactone in heart failure?

a)

a) Increases heart rate

b)

b) Stimulates RAAS activation

c)

c) Blocks aldosterone receptors

d)

d) Promotes hyperkalemia

33.

What triggers RAAS activation in heart failure?

a)

a) Reduced renal perfusion

b)

b) Increased blood volume

c)

c) High potassium levels

d)

d) Improved cardiac output

34.

Which symptom is most associated with left-sided heart failure?

a)

a) Peripheral edema

b)

b) Dyspnea

c)

c) Ascites

d)

d) Jugular venous distension

35.

Identify the rhythm

a)

2nd degree type 1 AVBlock

b)

2nd degree type 2 AVBlock

c)

Junctional Bradycardia

d)

Third degree AV Block

36.

Identify the rhythm

a)

Supraventricular Tachycardia

b)

Junctional Tachycardia

c)

Sinus Tachycardia

d)

AF in RVR

37.

Identify the rhythm

a)

Atrial Flutter

b)

Atrial Fibrillation

c)

Ventricular Fibrillation

d)

Junctional Tachycardia

38.

Identify the rhythm

a)

Sinus Bradycardia

b)

Junctional arrhythmia

c)

1st Degree AVBlock

d)

Normal Sinus Rhythm

39.

Identify the rhythm

a)

2nd Degree AV Block Type I

b)

Third degree AVBlock

c)

2nd Degree AV Block Type II

d)

Wandering atrial pacemaker

40.

Identify the rhythm

a)

2nd degree AVBlock Type I

b)

Atrial Flutter with missed beat

c)

3rd Degree AVBlock

d)

2nd degree AVBlock Type II

41.

Which of the following rhythms is less likely to produce a perfusing cardiac output?

a)

b)

c)

d)

Cardiology Quiz

Total questions: 41

Worksheet time: 21mins

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