Respiratory Therapist

Answers: A, B and C-Parenchymal destruction, air trapping, and small airway collapse are all pathophysiological changes consistent with a COPD patient.

Parenchymal destruction is caused by loss of lung tissue elasticity. Small airway collapse and subsequent air trapping are structural changes found in COPD patients, which also causes reduction in lung capacity. A collapsed bronchiole is also a structural change that will occur after small airway collapse.