Lab exam 2: Heart sounds

Question 1

What are the two main heart sounds typically identified during a cardiac examination?

Answer 1

The first heart sound (S1) and the second heart sound (S2).

Question 2

True or False: The first heart sound (S1) is caused by the closure of the aortic and pulmonary valves.

Answer 2

False. S1 is caused by the closure of the mitral and tricuspid valves.

Question 3

Fill in the blank: The second heart sound (S2) is primarily produced by the closure of the _______ and _______ valves.

Answer 3

aortic and pulmonary

Question 4

What does a split S2 indicate?

Answer 4

A split S2 can indicate a physiological phenomenon during inspiration or may suggest a pathological condition.

Question 5

Multiple Choice: Which heart sound is associated with the onset of ventricular contraction?

Answer 5

A) S1

Question 6

What is the significance of an S3 heart sound?

Answer 6

An S3 heart sound may indicate heart failure or volume overload.

Question 7

True or False: An S4 heart sound is typically heard in healthy individuals.

Answer 7

False. An S4 heart sound is usually associated with pathological conditions.

Question 8

What does the term ‘murmur’ refer to in relation to heart sounds?

Answer 8

A murmur refers to an abnormal sound due to turbulent blood flow in the heart.

Question 9

What is the physiological cause of a heart sound?

Answer 9

Heart sounds are produced by the closure of heart valves and the resultant vibrations of the heart and surrounding tissues.

Question 10

Fill in the blank: The presence of a _______ may suggest valvular heart disease.

Answer 10

murmur