Test
Procedure
Afferent
Efferent
Pupillary Reflex
Bright light shone into each eye to look for direct and consensual pupil constriction
II
III
Corneal Reflex
Cornea is brushed looking for a blinking response
V
VII
Response to painful stimuli
Supraorbital stimulus looking for facial grimacing
Vestibulo-ocular reflex
Tympanic membrane visualised. 50ml of cold water is steadily injected into each ear canal looking for eye nystagmus
VIII
III, IV, VI
Gag Reflex
Direct stimulation of the pharynx looking for gagging
IX
X
Cough Reflex
A suction catheter is passed down the endotracheal tube to stimulate the carina looking for a cough
