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Video 18-7: This video shows a pleural effusion and mobile atelectatic lung.

From: Critical Care Ultrasonography, Second Edition

This is termed lung flapping or the jellyfish sign. The 3.5 MHz transducer is in longitudinal orientation and placed perpendicular to the chest wall to scan through the 7th intercostal space in the right mid-axillary line.

11 secs
Author(s) Lewis Eisen, Peter Doelken, Sahar Ahmad
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