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Antemortem Respiratory Diagnostics

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Transtracheal Wash (TTW) and  Bronchoalveolar Lavage (BAL) can be very useful tools in diagnosing respiratory problems in individual animals or herd outbreaks.  They are not technically difficult to perform and are relatively non-invasive.

See the videos and PowerPoint presentation below for step-by-step instructions.

Video 1: 

"Conducting a Transtracheal Wash (TTW)" Dr. Terry Engelken


Video 2:

"Conducting a Bronchoalveolar Lavage (BAL)"  Dr Jim Thompson


Powerpoint presentation: 

Antemortem Respiratory Diagnostics  by Terry J. Engelken, DVM MS, Jim Thompson, DVM MS, Vicki Cooper, DVM PhD

Contact information:

Terry J. Engelken, 515-294-2192, engelken@iastate.edu

Jim Thompson, 515-294-3943, jthompsn@iastate.edu

Vicki Cooper, 515-294-1950, vcooper@iastate.edu