Day 2 - Neuro4 Quiz

Question 1

10 yo boy weakness over 3 days, now worsened to include symmetric facial weakness, DTRs absent, sensation intact

Answer 1

GBS

Question 2

Causes of dislocation of lens of eye

Answer 2

Marfan’s syndrome (upwards); Homocysteinuria (downward); Alport (can’t see, can’t pee, can’t hear); Traumatic

Question 3

Weber test: conductive v. sensorineural

Answer 3

heard best in affected ear - conductive; heard best in unaffected ear - sensorineural

Question 4

BPPV dx & tx

Answer 4

Dix-Hallpike maneuver; Epley maneuver

Question 5

Cherry red spot on macular

Answer 5

Tay-Sachs, Niemann-Pick, Central retinal artery occlusion

Question 6

Tx macular degeneration

Answer 6

Atrophic - Vitamin supplementation - beta-carotene, C, E, copper, zinc; Exudative - intravitreal ranizumab (VEGF) or laser photocoagulation

Question 7

Tx retinal detachment

Answer 7

Stop progression of retinal detachment w/ cryotherapy or laser photocoagulation; Reattach retina, which usually helps recover some of vision

Question 8

Risk factors for cataracts

Answer 8

Trauma, especially caustic substances, Diabetes, Corticosteroid, Older, Sunlight exposure, Tobacco, Low education, Alcohol

Question 9

Orbital v. Periorbital cellulitis

Answer 9

Orbital - limitation of eye movement, propotosis, pain on eye movement, decreased/double vision

Question 10

Tx acute angle glaucoma

Answer 10

Eye drops (e.g., beta blockers, cholinergic agoinsts, alpha agonists, prostaglandin analogs) and Acetazolamide; If refractory and dx confirmed, IV mannitol; Laser peripheral iridotomy

Question 11

Next step chemical burn to eye

Answer 11

Copious water irrigation, immediately

Question 12

Easiest way to distinguish Hordoleum v. Chalazion

Answer 12

Eyelid margin v. In eyelid itself

Question 13

Lesion to CN III

Answer 13

Fixed and dilated pupil, down and out eye