<p begin="00:00:07.204" end="00:00:08.813" style="s2">- [Voiceover] A linear array transducer</p>
<p begin="00:00:08.813" end="00:00:11.101" style="s2">with a superficial venous exam type</p>
<p begin="00:00:11.101" end="00:00:13.364" style="s2">is used to perform an ultrasound guided</p>
<p begin="00:00:13.364" end="00:00:15.289" style="s2">drainage of an abscess.</p>
<p begin="00:00:15.289" end="00:00:18.603" style="s2">The transducer is placed<br />in a longitudinal direction</p>
<p begin="00:00:18.603" end="00:00:21.380" style="s2">over the area of tenderness or fluctuance,</p>
<p begin="00:00:21.380" end="00:00:23.098" style="s2">with the orientation marker directed</p>
<p begin="00:00:23.098" end="00:00:24.780" style="s2">toward the patient's head.</p>
<p begin="00:00:24.780" end="00:00:27.090" style="s2">It is helpful to have a<br />generous amount of gel</p>
<p begin="00:00:27.090" end="00:00:30.651" style="s2">on the transducer face, to<br />decrease transducer pressure</p>
<p begin="00:00:30.651" end="00:00:33.171" style="s2">and pain with the examination.</p>
<p begin="00:00:33.171" end="00:00:35.625" style="s2">The depth and extent of the abscess cavity</p>
<p begin="00:00:35.625" end="00:00:37.445" style="s2">is determined by scanning the cavity</p>
<p begin="00:00:37.445" end="00:00:39.281" style="s2">in a left-to-right direction.</p>
<p begin="00:00:39.281" end="00:00:42.033" style="s2">Septation of the abscess<br />cavity should be determined</p>
<p begin="00:00:42.033" end="00:00:43.879" style="s2">as it is important to free these areas</p>
<p begin="00:00:43.879" end="00:00:46.948" style="s2">during the drainage procedure<br />for optimal results.</p>
<p begin="00:00:46.948" end="00:00:50.132" style="s2">The superior and inferior<br />extent of the abscess cavity</p>
<p begin="00:00:50.132" end="00:00:52.593" style="s2">can be determined by moving the transducer</p>
<p begin="00:00:52.593" end="00:00:55.357" style="s2">in a superior to inferior direction.</p>
<p begin="00:00:55.357" end="00:00:57.394" style="s2">The drainage incision should be planned</p>
<p begin="00:00:57.394" end="00:01:00.730" style="s2">at an area where the abscess<br />cavity is most superficial</p>
<p begin="00:01:00.730" end="00:01:04.147" style="s2">and likely to promote dependent drainage.</p>