EENT Flashcards
red eye around periphery and clear around iris. dx?
conjuntivitis
which type of conjunctivitis has eyes glued shut upon awakening?
bac
in kids: bac or viral conjunctivitis more common?
bac
in adults: bac or viral conjunctivitis more common?
viral
tx for bac conjuntivitis w/o contacts
erythromycin 5mg/g ointment
tx for bac conjuntivitis w/ contacts
fluoroquinolones (ofloxacin 0.3% drops, cipro 0.3% drops),
pt education for bac conjuntivitis w/ contacts
Tell contacts wearers to stop wearing contacts, and if bac don’t wear again until eye is normal and 24 hrs after treatment completed; throw away old case and lenses
leading cause of blindness in world
cataracts
pt w/ gradual onset Blurred vision, glare, altered color perception, monocular diplopia . dx??
cataract
difference in PE b/w immature and mature cataract
mature loses red reflex
biggest RF for keratitis
contacts use, esp overnight
what pathogen causes dendritic branching in the cornea visible upon fluorescience stain?
herpes (simplex or zoster)
which is more likely to present w/ significant photophobia? conjunctivitis or keratitis
keratitis
tx plan for keratitis
emergency opthalmology consult/referral
painful, blurry vision w/ injection around iris and small mishapen pupil that is poorly reactive to light. dx?
iritis/ uveitis
main difference between Chalazion and Hordeolum (sty)
Hordeolum (sty) is painful and inflammed (think hot). chalazion is painless (think cold)
tx for entropions and ectropions
surgery
painful loss of vision, decrease in color, central scotoma. Unilateral. Pain worse w/ movement.
dx?
optic neuritis
special test to dx optic neuritis
Marcus-Gunn pupil (swing light from unaffected to affected eye and pupils dilate)
tx for optic neuritis
IV methylprednisone. Then PO corticosteroids
MCC of optic neuritis
MS
med that can cause optic neuritis
ethambutol
how to differentiate between orbital cellulitis and preseptal cellulitis
Preseptal cellulitis (no pain w/ eye movement, no proptosis)
orbitals: ocular pain esp w/ movment, extraocular muscle weakness (opthalmoplegia) with diplopia, proptosis, chemosis
common precursor to orbital cellulitis
sinus infx
tx for dry macular degeneration (3 supplements)
zinc, vitamin C and E
tx for wet macular degeneration: inj
intra-vitreal VEGF inhibitors (bevacizumab, ranibuzumab, alfibercept).
sudden onset of new floaters in vision, photopsias (flickering lights), curtain-like shadow, no pain, no red eye. Persistent portion of visial field affected. dx?
retinal detachment
what position should retinal detachment pt try to stay in until opthal evaluation
stay supine w/ head turned toward side of detached retina
rx for proliferative diabetic retinopathy
VEGF inhibitors
laser tx for diabetic retinopathy
laser photocoagulation treatment
imaging for suspected blowout fx
CT of orbit
use an eye patch in corneal abrasion?
no
should you remove a FB that ruptured a globe?
no
MCC of retinal artery occlusion
carotid atherosclerosis
is CRAO or CRVO more common?
CRVO
4 RFs to def ask about for retinal vascular occlusion
HTN, DM, dyslipidemia, hypercoagulability
is CRAO and CRVO painless or painful?
painless
classic triad of closed angle glaucoma on PE
Classic triad of injected conjunctiva, cloudy cornea, and fixed dilated pupil
1st tx for angle closure glaucoma
IV Acetazolamide, followed by PO
1st line tx for open angle glaucoma
prostaglandin analogs–latanoprost, travoporst, trafluprost, bimatoprost
for suspected cerumen impaction, ask about what in PSH
use of Q tips
MCC of conductive hearing loss
cerumen impaction
MC pathogen causing otitis externa
pseudomonas
ask about what PSH for suspected otitis externa
swimming
otitis external will have pain when you palpate ____
tragus
1st line for otitis externa but can’t be used w/ ruptured TM
cortisporin suspension (1st line; neomycin+polymyxin B+hydrocortisone) (not if TM ruptured, tubes, or not visible
alt 1st line for otitis externa if TM ruptured
Cipro+dexamethasone (ciprodex) drops (alt first line; $$$; ok to use on ruptured TM, tubes; for kids use penicillin or sulfa)