Cranial Nerve

Question 1

CN 1

Answer 1

Olfactory:
- Test one nostril at a time and eyes closed
- Coffee
- Vanilla
- Peppermint
- Alcohol wipe

Question 1

CN 2:

Answer 1

Optic:
- General eye exam
- Inspection
- Orbital bruises
- Orbital deformity
- Exophthalmos
- Proptosis
- Red conjunctiva
- Scleral icterus
- Subconjunctival haemmorrhaeges
- Pupil size shape symmetry

Optic nerve exam:
- Acuity
- Direct light reflex
- Marcus Gunn pupil (= Retinal Afferent Pupillary Detachment)
- Accommodation
- Visual fields
- Blind spot
- Colour vision (Ishihara) book
- Fundoscopy
- Red light reflex
- Pupil reaction

Question 2

CN 3 (oculomotor)
CN 4 (trochlear)
CN 6 (Abducens)

Answer 2

Direct light reflex
Consenual light reflex
Accommodation
Eye movements (H-Test)