LAB 3 RESPIRATORY / QUIZ

QUESTION 1

Define the following terms:

• Atelectasis

• Bronchiectasis

Slide 1

• Morphological

Dx

• Possible

etiology:

Slide 2

• Morphological

Dx

• Possible

etiology:

Slide 2

• Name the disease

• Describe the pathogenesis:

Rule outs?

•

•

•

Outbreak Respiratory Disease

Several animals are sick or died with severe respiratory problems

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

• 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

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?

•What would be the texture of

consolidated lung

•What would you expect to see grossly

on cut surface of the lung?

Feedlot

•What would be the texture of

consolidated lung

•What would you expect to see grossly

on cut surface of the lung?

Feedlot

•What do you expect to see

microscopically

Questions

•Pathogenesis of the disease

•Is prevention possible?

Questions

• 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”

• Ruled-outs:

• What tests would your recommend?

“Tiger”

Laboratory Results

• CBC: Leukocytosis, neutrophilia

• Thoracocenthesis:

This effusion is most

likely:

a.- Hydrothorax

b.- Chylothorax

c.- Pyothorax

• 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

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

Gross lesions on

postmortem examination

Cytology?

ChylothoraxChylothorax

• 2-year-old Rottweiler • Chronic cough • Exercise intolerance• Morphological Dx

• Most likely etiology

“Thunder”

“Thunder”

What would you expect to see in the lungs?

• Grossly

•Microscopically

Diagnosis?

Too Much Tequila