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A 45-year-old man presents after being assaulted with a metal bar. He has heavy brisk bleeding from the mouth and both nares and bilateral periorbital ecchymoses.

1. List (3) interventions that can be performed in the Emergency Department for maxillofacial bleeding. 3 marks

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On secondary survey, you note bilateral periorbital ecchymoses.

2. List (4) clinical findings that support the diagnosis of orbital compartment syndrome. 4 marks

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3. Describe the steps to perform a lateral canthotomy and cantholysis. 5 marks

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