Pleural Gas Effusion Lab Report

The sign associated with air in the pleural layer is the “barcode sign” or “stratosphere sign” on M-mode. The stratosphere sign is present with a pneumothorax, and the air will produce only the horizontal lines throughout the image. The patient should lie strictly supine to allow location of pleural gas effusion in non-dependant lung regions. To confirm the diagnosis of partial pneumothorax, examination should be extended to lateral regions of the chest wall to localize the point where the normal lung pattern (lung sliding and/or the presence of vertical B-lines) replaces the pneumothorax pattern (absent lung sliding and horizontal A-lines). This point is called the “lung point”. Utilization of the time motion mode can facilitate detection