The nurse's auscultation of a client's lung fields reveals the presence of a wheeze. The nurse should recognize that this adventitious sound results from what pathophysiologic process?
Air being diverted from the trachea to the bronchi
Air passing through constricted passageways
Air increasing in turbulence in a wide passage
Air leaking from the alveoli into the pleural space
The Correct Answer is B
A. Air being diverted from the trachea to the bronchi does not explain the cause of a wheeze. This is a normal part of airflow distribution.
B. Air passing through constricted passageways is correct. A wheeze is a high-pitched, musical sound that occurs when air flows through narrowed or obstructed airways, as seen in conditions like asthma, chronic obstructive pulmonary disease (COPD), or bronchitis.
C. Air increasing in turbulence in a wide passage is incorrect. Wheezing occurs due to airway narrowing, not widening.
D. Air leaking from the alveoli into the pleural space describes pneumothorax, which presents with absent breath sounds rather than wheezing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Using two middle fingers lightly applied to the thumb side of the wrist is correct. This technique ensures accurate detection of the radial pulse without excessive pressure, which could occlude the artery.
B. Firm pressure on the wrist along the fifth digit (ulnar side) is incorrect because the radial pulse is located on the thumb side of the wrist, not the ulnar side.
C. Using the bell of the stethoscope in the antecubital area is incorrect because this technique is used for blood pressure assessment, not radial pulse assessment.
D. Using the thumb and index finger to obliterate the pulse is incorrect because the thumb has its own pulse, which may lead to inaccurate readings.
Correct Answer is B
Explanation
A. Air being diverted from the trachea to the bronchi does not explain the cause of a wheeze. This is a normal part of airflow distribution.
B. Air passing through constricted passageways is correct. A wheeze is a high-pitched, musical sound that occurs when air flows through narrowed or obstructed airways, as seen in conditions like asthma, chronic obstructive pulmonary disease (COPD), or bronchitis.
C. Air increasing in turbulence in a wide passage is incorrect. Wheezing occurs due to airway narrowing, not widening.
D. Air leaking from the alveoli into the pleural space describes pneumothorax, which presents with absent breath sounds rather than wheezing.
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