A 26 year old man is admitted with a moderate sized spontaneous pneumothorax. An intercostal catheter has been inserted and he is placed on drainage with an underwater seal. Which of following indicates when it is safe to remove the catheter?

Question

A 26 year old man is admitted with a moderate sized spontaneous pneumothorax.  An intercostal catheter has been inserted and he is placed on drainage with an underwater seal.  Which of following indicates when it is safe to remove the catheter?

Answer

Cessation of movement of the water level in the catheter with respiration.

Answer

Air bubbles are seen in the underwater seal only when the patient coughs.

Answer

Complete resolution of pain and shortness of breath.

Answer

Chest X-ray shows re-inflation of the lung.

Answer

Chest X-ray shows the lung remains inflated after the catheter has been clamped.

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A 26 year old man is admitted with a moderate sized spontaneous pneumothorax. A...

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