A COPD patient receiving mechanical ventilation is most susceptible to which of the following types of ventilator-induced lung injury?
A. barotrauma
B. atelectrauma
C. volutrauma
D. biotrauma
?ANS: A
A. Correct response: One of the well-recognized clinical manifestations of extra-alveolar air is pneumothorax, but extra-alveolar air can manifest itself also as pneumomediastinum, pulmonary interstitial emphysema, subcutaneous emphysema, pneumoperitoneum, and systemic gas embolization. Although any patient receiving mechanical ventilation is susceptible to these complications, the highest risk groups appear to patients with severe airflow obstruction. These patients include asthmatics, patients with COPD, and patients with acute lung injury (ALI) and acute respiratory distress syndrome (ARDS).
B. Incorrect response: See explanation A.
C. Incorrect response: See explanation A.
D. Incorrect response: See explanation A.
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