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===Diagnostis Imaging===
 
===Diagnostis Imaging===
 +
Excessive mucopurulent
 +
tracheal secretions are evident on endoscopy
 +
 +
Radiographs
 +
are recommended in animals that do not respond to treatment
 +
as anticipated, as they are useful to rule out other
 +
types of lung disease and, in some cases, may show evi-dence of irreversible lung
 +
pathology such as bronchiectasis.
 +
There is little
 +
evidence to support the use
 +
of serum and intradermal
 +
allergy testing in the diagnosis
 +
of RAO.
 +
 
===Laboratory Tests===
 
===Laboratory Tests===
 
Routine haematology and biochemistry
 
Routine haematology and biochemistry
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