5. Examine the upper airway of the horse, induce cough, and summarise the findings Flashcards
What is the border of upper and lower airways?
The bifurcation of the trachea
What to observe, to get a general impression of the horse?
- Behaviour
- Posture
- Gait
- Body condition
- Abnormal sounds/noises, breathing
Strucutres/areas of physical exam of airways:
- Nose and paranasal sinus
- Guttural pouches
- Cough
- Larynx
- Trachea
- Thorax
Physical methods of examination of airways:
- Inspection
- Smell
- Palpation
- Auscultation
- Percussion
How to/steps of examination the nose:
- Physical method
- Normal findings
- Nasal discharge
- Expired air
Physical method of examining the nose:
- Direct auscultation
- Percussion on the bones with the tip of the middle finger
normal findings of examining the nose:
- Temperature of the region is equal to the surroundings
- Palpation is not painful
- Percussion sound is sharp, bone like
nasal discharge of examining the nose:
- Is it continous or temporary
- Uni- or bilateral
- Amount of discharge (mild, moderate, severe)
- Quality, colour, smell
- Origin
Examples of origin of nasal discharge:
- Nose
- Paranasal sinus
- Pharynx
- Guttural puch
- Trachea
- Lung
- Stomach
Expired air of examining the nose, observations:
- Intensity of the airflow
- Temperature of the airflow
- Smell of expired air
- Normal findings:
- Medium strength and temperature
- Odour is characteristic, not unpleasant
- Airflow is symmetrical bilateral
Physical examination of paranasal sinuses:
- Inspection
- Palpation
- Percussion (flexed middle finger)
Normal findings of paranasal sinuses:
- Skin is intact, no alopecia or abnormal shape
- Temperature is equal to the surroundings
- Palpation is not painful
- Percussion sound is sharp, bone like
Which sinus is most commonly affected?
Maxillary sinus
In case of:
- Primary disease
- Disease of the upper cheek teeth
What separates the rostral and caudal maxillary sinus?
The septum.
The sinuses almost totally communicate
What is a guttural pouch?
They are sacs of air that expand from the Eustachian tube, with one on each side of the horse’s head.
Name the different guttural pouches:
- Rostral maxillary sinus
- Caudal maxillary sinus
- Dorsal conchal sinus
- Frontal sinus
- Ethmoidal sinus
- Sphenoplatinale sinus
Where can we find the guttural pouches?
Between the base of the skull, atlas and pharynx
Which structure splits the guttural pouches?
Stylohyoid bone.
Normal findings of guttural pouch:
- The skin is intact, so no alopecia is seen
- Temperature is equal to the surroundings
- Palpation is not painful
- Percussion sound is resonant
Normal findings of larynx:
- Temperature is equal to the surroundings
- No alterations on palpation
- Very mild stridor on auscultation
Normal findings of trachea:
- The skin is intact, so no alopecia is seen
- Temperature is equal to the surroundings
- No alterations on palpation
- Laryngeal noise is audible in a weaker form on
auscultation
Normal findings of cough:
- No spontaneous cough
- Difficult or impossible to induce cough
Characteristics of an induced cough:
induced cough is:
1. Strong
2. Sharp
3. Low
4. Short
5. Dry
6. Non painful
7. Snapping
8. Doesn´t reoccur
How to induce a cough:
- Press the arytenoid cartilage of the larynx
- Press the first tracheal rings
Which characteristics to find of a cough:
- Frequency.
- Intensity
- Tone
- Occurrence
- Duration
- Amount of secretion
- Pain