A client was recently diagnosed with a heart murmur and is asking the nurse for more information. The nurse will educate the client that a heart murmur:
indicates turbulent blood flow through a valve.
is an extra sound due to blood entering an inflexible chamber.
means that there is some inflammation around the heart.
is a high-pitched sound due to a narrow valve.
The Correct Answer is A
A. Indicates turbulent blood flow through a valve:
This statement is correct. A heart murmur is an abnormal sound during the heartbeat cycle, often indicating turbulent blood flow through a valve. Murmurs can result from various factors such as valve disorders, structural abnormalities, or other heart conditions.
B. Is an extra sound due to blood entering an inflexible chamber:
This statement is not accurate. Heart murmurs are primarily associated with turbulent blood flow rather than an extra sound related to an inflexible chamber.
C. Means that there is some inflammation around the heart:
This statement is incorrect. Heart murmurs are not specifically related to inflammation around the heart. They are primarily caused by issues with blood flow through the heart valves.
D. Is a high-pitched sound due to a narrow valve:
This statement is a bit oversimplified. While murmurs can sometimes be associated with narrow valves (stenosis), they can also result from various other valve abnormalities or conditions, and not all murmurs are high-pitched. The pitch and characteristics of a murmur can provide clues about its cause, but they are not the sole indicators.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Bronchovesicular breath sounds and normal in that location:
Bronchovesicular breath sounds are medium-pitched sounds heard over the major bronchi and are usually equal on inspiration and expiration. They are typically heard in the 1st and 2nd intercostal spaces anteriorly and between the scapulae posteriorly. While they might be normal in certain locations, hearing them over peripheral lung fields might indicate an abnormality.
B. Normally auscultated over the trachea:
This statement doesn't specify a particular type of breath sound. Tracheal breath sounds are harsh and relatively high-pitched, heard directly over the trachea. They are normal over the trachea but are not normally heard in the lung periphery.
C. Vesicular breath sounds and normal in that location:
Vesicular breath sounds are low-pitched, soft sounds heard over most of the lungs during inspiration. They are longer on inspiration than expiration and are considered normal breath sounds heard in the peripheral lung fields. Hearing vesicular sounds in the posterior lower lobes is typical and indicates normal lung function.
D. Bronchial breath sounds and normal in that location:
Bronchial breath sounds are high-pitched and loud, heard primarily over the trachea and larynx. If heard in the peripheral lung fields, especially in the lower lobes, it can suggest an abnormality such as consolidation or compression of lung tissue.
Correct Answer is B
Explanation
A. Wheezing: Wheezing is a continuous, high-pitched whistling sound usually heard during expiration. It is often associated with narrowed airways, such as in asthma or chronic obstructive pulmonary disease (COPD). Wheezing occurs due to the turbulent airflow through narrowed bronchi or bronchioles and is not typically associated with pleuritis.
B. Friction rub: Pleuritis, or inflammation of the pleura, can cause a friction rub. This sound occurs when the inflamed pleural layers rub against each other during breathing. It's a grating or rubbing sound heard on auscultation and is a hallmark sign of pleuritis.
C. Stridor: Stridor is a high-pitched, harsh sound heard during inspiration and sometimes expiration. It is often a sign of upper airway obstruction, such as in croup or anaphylaxis. Stridor results from turbulent airflow through a partially obstructed or narrowed larynx or trachea.
D. Crackles: Crackles, also known as rales, are brief, discontinuous, popping sounds heard on inspiration. They can be fine or coarse and are often associated with conditions that cause fluid or secretions in the alveoli or small airways, such as pneumonia or heart failure. Crackles are not typically associated with pleuritis.
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