A middle-aged client reports, “I can’t get my breath when I walk.” Upon assessment, the nurse notes that the patient has a barrel chest and is using his accessory muscles to breathe. The patient’s respiratory rate is 28/min. On palpation, there is limited expansion and decreased tactile fremitus. Percussion yields hyperresonant sounds. On auscultation, prolonged expiration, scattered wheezes, and rhonchi are present. Which disorder would the nurse suspect?
A.
Pneumonia.
B.
Atelectasis.
C.
Pleural effusion.
D.
Emphysema.
The correct answer and Explanation is :
The correct answer is D. Emphysema.
Emphysema is a chronic obstructive pulmonary disease (COPD) characterized by the destruction of alveoli, leading to reduced elasticity in the lungs. This results in air trapping and difficulty with gas exchange, making it hard for the patient to exhale fully. The clinical findings in the scenario are consistent with emphysema.
Key Signs and Symptoms of Emphysema in the Scenario:
- Barrel Chest: The patient’s barrel chest is a classic sign of emphysema. This occurs due to the chronic hyperinflation of the lungs as air becomes trapped in the alveoli.
- Accessory Muscle Use: Patients with emphysema often use accessory muscles to assist in breathing because the diaphragm becomes less effective.
- Increased Respiratory Rate: The respiratory rate of 28 breaths per minute (tachypnea) reflects the body’s effort to compensate for impaired gas exchange.
- Limited Chest Expansion and Decreased Tactile Fremitus: In emphysema, the lungs lose elasticity, leading to reduced chest expansion. Decreased tactile fremitus occurs because the air-filled spaces in the lungs do not transmit sound waves as efficiently.
- Hyperresonant Percussion Sounds: Hyperresonance on percussion indicates air trapping in the lungs, a hallmark of emphysema.
- Prolonged Expiration: This is common in emphysema due to the difficulty in expelling trapped air from the lungs.
- Wheezes and Rhonchi: Wheezing indicates narrowed airways, while rhonchi are caused by mucus in the larger airways, which can also be present in chronic obstructive conditions.
Differentiation from Other Conditions:
- Pneumonia typically presents with fever, productive cough, and dullness on percussion due to lung consolidation.
- Atelectasis shows reduced breath sounds, dullness to percussion, and often occurs after surgery or in bedridden patients.
- Pleural Effusion is characterized by fluid accumulation in the pleural space, resulting in decreased breath sounds and dull percussion, unlike the hyperresonance in emphysema.
Thus, the combination of air trapping, accessory muscle use, and hyperresonance strongly suggests emphysema.