What Cause the Expanded A-P Thoracic Diameter (Barrel Chest)in Patients

question 26

Multiple Choice

What cause the expanded A-P thoracic diameter (barrel chest) in patients with emphysema?

• A)air trapping and hyperinflation
• B)persistent coughing to remove mucus
• C)recurrent damage to lung tissues
• D)dilated bronchi and increased mucous secretions

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