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, 08:17, 1 June 2011
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'''Auscultation of the ventral lung fields of a four-year-old Thoroughbred-cross gelding revealed a decrease in breath sounds.'''
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<FlashCard questions="3">
|q1=What diagnostic procedure is illustrated in the image?
|a1=Thoracocentesis, a surgical puncture of the chest wall into the pleural cavity for aspiration of fluids, also called pleurocentesis.
|l1=
|q2=What is the value of this procedure?
|a2=
Thoracocentesis is a procedure which has both diagnostic and therapeutic value. <br><br>
When the findings from either thoracic auscultation or percussion suggest a pleural effusion, thoracocentesis can both confirm its presence and provide a specimen for examination. <br><br>
Analysis of the pleural fluid may in turn help you to determine the underlying disease process and develop a therapeutic plan. <br><br>
Drainage of pleural effusion via thoracocentesis is beneficial in removing large volumes of fluid from the thorax.
*Immediately following this drainage, some horses show increased pain, associated with loss of the ‘cushion’ of fluid in the pleural space.
*Removal of this fluid decreases respiratory effort and is beneficial in the resolution of an infectious process in the thorax.
*In horses with thoracic neoplasia and large volumes of pleural effusion, thoracocentesis and chest drainage may resolve signs of dyspnoea and respiratory distress.
|l2=
|q3=What are the normal values for pleural fluid nucleated cell counts and total protein?
|a3=
*Pleural fluid from healthy horses may contain up to 10,000 nucleated cells/l and 35g/l total protein.
*Most horses have less than 5,000 nucleated cells/l and less than 25g/l total protein.
|l3=
</FlashCard>
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