Endoscopic examination by means of a flexible fibre optic scope allows the veterinarian to visualise a large proportion of the respiratory system of the horse, and therefore diagnose problematic respiratory conditions, for example, “roarers”, an entrapped epiglottis, pharyngitis and chondritis.
The majority of endoscopic examinations will be performed with the horse standing and resting, usually restrained by means of a twitch.
For a more accurate diagnosis a Dynamic Respiratory Scope may be required (whereby the horse is scoped whilst working at speed), at which time the horse will be referred to Randwick Equine Centre.

An endoscopic exam is indicated when any of the following are present:
• nasal discharge
• respiratory noise (at exercise or rest)
• facial swelling
• coughing
• respiratory distress