<p begin="00:00:07.258" end="00:00:09.265" style="s2">- [Voiceover] A phased<br />array transducer is used</p>
<p begin="00:00:09.265" end="00:00:13.394" style="s2">to evaluate lung sliding as<br />an extension of the FAST exam.</p>
<p begin="00:00:13.394" end="00:00:15.215" style="s2">The orientation marker is positioned</p>
<p begin="00:00:15.215" end="00:00:17.480" style="s2">in the direction of the patient's head.</p>
<p begin="00:00:17.480" end="00:00:20.745" style="s2">The transducer is placed<br />in a long-axis orientation</p>
<p begin="00:00:20.745" end="00:00:23.212" style="s2">over the anterior chest wall at the third</p>
<p begin="00:00:23.212" end="00:00:25.251" style="s2">or fourth intercostal space</p>
<p begin="00:00:25.251" end="00:00:29.168" style="s2">in the anterior axillary<br />or midclavicular line.</p>
<p begin="00:00:31.277" end="00:00:34.318" style="s2">A superficial scanning depth is used.</p>
<p begin="00:00:34.318" end="00:00:37.356" style="s2">The ribs are identified in<br />the near field of the image</p>
<p begin="00:00:37.356" end="00:00:40.798" style="s2">as a bright interface<br />with a posterior shadow.</p>
<p begin="00:00:40.798" end="00:00:42.395" style="s2">The pleural line is identified</p>
<p begin="00:00:42.395" end="00:00:46.390" style="s2">as a bright hyperechoic line<br />between the rib shadows.</p>
<p begin="00:00:46.390" end="00:00:48.465" style="s2">The normal to and fro sliding movement</p>
<p begin="00:00:48.465" end="00:00:51.177" style="s2">of the visceral pleural<br />against the parietal pleural</p>
<p begin="00:00:51.177" end="00:00:54.543" style="s2">with breathing generates<br />the lung sliding sign.</p>
<p begin="00:00:54.543" end="00:00:57.892" style="s2">If desired, the delineation<br />of the lung sliding interface</p>
<p begin="00:00:57.892" end="00:01:02.059" style="s2">may be enhanced by changing<br />to a linear array transducer.</p>