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4. 1 and 3

The chest x-ray shows an elevated right hemidiaphragm. The right tracheal shift and the downward shift of the right minor fissure provide further evidence of right lung volume loss. There is no apparent pneumothorax on the left.

What would be the next appropriate step? (Click on the correct answer to proceed to the third of four panels)

  1. Bronchoscopy
  2. Sniff test
  3. Thoracic CT angiography
  4. Thoracic PET scan
  5. VATS

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