試題詳解

55、 A 45-year-old male patient received laparoscopic cholecystectomy. After60-min CO₂ insufflation, intra-abdominal pressure was 14 mmHg. End-tidal CO₂ was found to increase from 30 to 50 mmHg. SpO₂ was 80% with airway pressure soared up to 40 cm H₂O. Physical examination showed a reduction of breathing sound with hyperresonance over the right lung. In addition, slight swelling and crepitus were noted over anterior chest wall. The most likely diagnosis is:
(A) Endobronchial intubation
(B) Massive CO₂ embolism
(C) Pneumothorax
(D) Capnothorax
(E) Subcutaneous emphysema