lab 3 respiratory / quiz question 1 define the following terms: atelectasis bronchiectasis
TRANSCRIPT
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LAB 3 RESPIRATORY / QUIZ
QUESTION 1
Define the following terms:
• Atelectasis
• Bronchiectasis
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Slide 1
• Morphological
Dx
• Possible
etiology:
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Slide 2
• Morphological
Dx
• Possible
etiology:
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Slide 2
• Name the disease
• Describe the pathogenesis:
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Rule outs?
•
•
•
Outbreak Respiratory Disease
Several animals are sick or died with severe respiratory problems
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Bovine Respiratory Complex (BRD)
• Enzootic pneumonia of calves: P. multocida, M. haemolytica, Mycoplasmas
• Shipping Fever: M. haemolyica A1 • Viral respiratory infections: Parainfluenza-3 (PI-3
virus), Bovine Respiratory Syncytial Virus, Bovne Herpes Virus-1 (IBR), Bovine Viral Diarrhea (BVD)?
• Atypical Interstitial Pneumonia: Bovine Pulmonary Edema dn Emphysema, Hypersensitivity Pneumonitis
• Toxic gases
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• Clinical examination:• Pyrexia 41C• Mucopurulent nasal discharge, moist
cough• Increased bronchial sounds and crackles
• Clinical pathology:• Leukocytosis with neutrophilia• Increased plasma fibrinogen
• Presumptive diagnosis?
Laboratory Findings
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Two steers were sent for
necropsy
What would you expect to see grossly in the thoracic cavity?
Two steers were sent for
necropsy
What would you expect to see grossly in the thoracic cavity?
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•What would be the texture of
consolidated lung
•What would you expect to see grossly
on cut surface of the lung?
Feedlot
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•What would be the texture of
consolidated lung
•What would you expect to see grossly
on cut surface of the lung?
Feedlot
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•What do you expect to see
microscopically
Questions
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•Pathogenesis of the disease
•Is prevention possible?
Questions
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• 5-year-old DLH, intact, male cat • In the last four weeks the owner noticed:
• Poor appetite• Weight loss• Not playing or exercising
• Taken to the veterinarian• Thoracic pain on palpation• Dull sound on thoracic percussion• X rays showed:
• obscure cardiac silhouette • poor pulmonary detail
“Tiger”
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• Ruled-outs:
• What tests would your recommend?
“Tiger”
Laboratory Results
• CBC: Leukocytosis, neutrophilia
• Thoracocenthesis:
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This effusion is most
likely:
a.- Hydrothorax
b.- Chylothorax
c.- Pyothorax
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• What would you see grossly ?
• Do you expect extensive pulmonary involvement?
• Pathogenesis?
• What would expect to see microscopically
“Tiger”The cat deteriorated in spite of treatment
-Euthanasia
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What would be the other differential diagnoses in a cat with effusion?:
• Gross appearance of the effusion fluid
• Gross lesions in postmortem examination
• Biochemical analyses of the effusion
• Cytological examination of the effusion
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Gross lesions on
postmortem examination
Cytology?
ChylothoraxChylothorax
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• 2-year-old Rottweiler • Chronic cough • Exercise intolerance• Morphological Dx
• Most likely etiology
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“Thunder”
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“Thunder”
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What would you expect to see in the lungs?
• Grossly
•Microscopically
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Diagnosis?
Too Much Tequila