Resp/Thoracic LA Flashcards
What is the primary source of resistance in the respiratory system?
upper airways (esp. oral cavity)
Why do horse w/ UA issues often present with noisy dyspneic breathing?
increase resistance→decrease ventilation
increase turbulence→increase noise
What is a major consideration for sinoscopy procedure?
AGE (<teens>
</teens>
What two anatomical structures can be assessed well with rads?
paranasal sinuses
dental arcades
What is the biggest issue with rads?
superimposition of structures
What is the benefit of CT/MRI compared to rads of the head/larynx?
no superimposition of structures
What is MRI good for?
ST detail
What is engorgement of the nasal mucosa associated with?
Horner’s syndrome
Wry nose
deviation of the maxilla
epidermal inclusion cyst (atheromas)
What are the different sinuses in the head and are they connected? Connected to the nose?
Paired Sinuses
◦ Frontal
◦ Caudal maxillary
◦ Rostral maxillary
◦ Dorsal conchal
◦ Ventral conchal
◦ Sphenopalatine
all comunicate on the same side either direct/indirect
all communicate to nose via nasomaxillary aperature/middle meatus
What are the primary and secondary diseases associated w/ sinusitis?
primary: usually strep. sp.
secondary: dental dz*, mass, trauma
Main diagnostics for paranasal sinuses?
What is the arrow pointing to?
fluid line
How do you know this is sinusitis and not a mass in the sinus?
presence of gas in the sinus
What is the general tx for sinusitis?
Primary: lavage (trephine), abx, +/- SX debridement
Secondary: address underlying cause & tx like primary