A 44-year-old man with a subarachnoid hemorrhage and a Glasgow coma score (GCS) of 9 is admitted to the ICU after initial assessment in the emergency department, where he was intubated and placed on a ventilator. ACT of the brain revealed a subarachnoid and an intracerebral hemorrhage. Several hours after his arrival to the ICU, the patient is noted to have increased ventilatory pressures and decreased breath sounds on the left. His 0 2 saturation remains at 100%.

What are the possible causes and what imaging modalities can you use to further assess the patient's problem? *This patient case is from Docplexus Editorial Team for educative purpose only. Source: Case Files Critical Care The answers are posted in the comments section Click here .