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There is an increasing frequency in the use of POCUS to diagnose a pneumothorax in the Emergency Department.

1. List (4) findings on lung ultrasound which serve to diagnose pneumothorax. 4 marks

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2. Which ultrasound probe is favoured as best to see a pneumothorax? Provide justification for your answer. 2 marks

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3. List (4) conditions that can lead to false positive finding suggestive of pneumothorax on lung ultrasound. 4 marks

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4. List (2) cardiac POCUS findings of tension pneumothorax. 2 marks

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