ENT/Ophthalmology Flashcards
What is required for the clinical diagnosis of acute otitis media?
1) bulging of the tympanic membrane
2) other signs of acute inflammation (marked erythema of the tympanic membrane, fever, ear pain) and middle ear effusion
What are the most common bugs to cause acute otitis media?
- S. pneumoniae
- H. influenzae
- M. catarrhalis
How long does acute otitis media last?
last less than 3 weeks
What is chronic otitis media?
> 3 months, 3 episodes in 6 months or 4 in 12 with clearing between
-clear serous fluid in the middle ear without symptoms of ear infection (may have hearing loss/asymptomatic) - no abx
How do you dx acute otitis media?
otoscopic - bulging, loss of landmarks, redness, TM injection
-a key finding is limited mobility of the TM with pneumotoscopy
What is the tx of acute otitis media?
-first-line amoxicillin, augmentin = 2nd line (PCN allergy = azithromycin, erythromycin, Bactrim)
-treat for <2 years for 10 days
and >2 years for 5-7 days
What are the complications of acute otitis media?
mastoiditis and bullous myringitis
What is the most common cause of viral acute pharyngotonsillitis?
adenovirus
What are the characteristics of mononucleosis?
Epstien Barr virus, fever, sore throat, lymphadenopathy, splenomegaly, atypical lymphocytes and heterophiles agglutination test (monospot)
When should you consider gonorrhea pharyngitis?
patients with recent sexual encounters or with non-resolving pharyngitis
When is it fungal pharyngotonsillitis?
in patients using inhaled steroids
What is strep pharyngitis caused by?
Group A B-hemolytic streptococci (GABHS)
What is the centor criteria?
- Absence of cough
- exudates
- fever (>100.4)
- cervical lymphadenopathy
What is not suggestive of strep?
coryza, hoarseness, and cough
What does the centor score need to meet to get a rapid streptococcal test?
3 out of 4 (sensitivity >90%)
What do you do if you have a negative rapid streptococcal test?
throat culture is the gold standard
What is the treatment for Group A Strep?
penicillin is first line, azithromycin if penicillin-allergic
What is the complications of Group A strep?
rheumatic fever and post-strep glomerulonephritis
What is the treatment of viral acute pharyngotonsillitis?
supportive
What is the treatment for mononucleosis?
symptomatic and avoid contact sports, antibiotics such as amoxicillin or ampicillin may cause a rash
- for athletes planning to resume non-contact sports three weeks from symptoms onset
- for strenuous contact sports 4 weeks after illness onset
What is the treatment for funga pharyngitis l?
clotrimazole, miconazole, or nystatin
What is the treatment of gonorrhea pharyngitis?
IM ceftriaxone and azithromycin
What are the symptoms of allergic rhinitis?
clear nasal drainage, rhinorrhea, itchy, watery eyes, sneezing nasal congestion, pale, bluish, boggy mucosa
- allergic shiners (blue discoloration below eyes), transverse nasal crease
- IgE mediated mast cell histamine release
What is the tx of allergic rhinitis?
avoid any known allergens and use antihistamines, cromolyn sodium, nasal or systemic corticosteroids, nasal saline drops or washes, and immunotherapy
Intranasal decongestants should not be used more then 3-5 days because it can cause what?
rhinitis medicamentosa
What is viral conjunctivitis?
acute onset unilateral or bilateral erythema o conjunctiva. copious watery discharge, tender preauricular lymphadenopathy, scant mucoid discharge
What is the MC of viral conjunctivitis?
adenovirus
-highly contagious
How is viral conjunctivitis transmitted?
direct contact or swimming pools
What is bacterial conjunctivitis?
will present with purulent (yellow) discharge from both eyes (“glued shut”), crusting, usually worse in the morning
-may be unilateral
What are the most common causes of bacterial conjunctivitis?
S. pneumonia and S. aureus
What are the signs and symptoms of M. catarrhalis and gonococcal?
copious purulent discharge, in a patient who is not responding to conventional treatment
What are the signs and symptoms of chlamydia (bacterial conjunctivitis)?
newborn, Giemsa stain - inclusion body, scant mucopurulent discharge
What are the signs and symptoms of allergic conjunctivitis?
red eyes, itching, and tearing, usually bilateral, cobblestone mucosa on the inner/upper eyelid
What is the tx of allergic conjunctivitis?
hand washing, avoid contamination
What is the treatment of bacterial conjunctivitis?
- gentamicin/tobramycin
- erythromycin ointment (chlamydia for newborns)
- trimethoprim and polymyxin B
- ciprofloxacin
What do you use for bacterial conjunctivitis with those that wear contact lenses?
pseudomonas treatment = fluoroquinolone (ciprofloxacin/ciloxan drops)
What is used for treatment of Neisseria conjunctivitis?
warrants prompt referral and topical + systemic antibiotics
What is the treatment for chlamydial conjunctivitis?
systemic tetracycline or erythromycin x 3 weeks, topical ointments as well, assess for STD or child abuse
What is the treatment for viral conjunctivitis?
eye lavage with normal saline BID 7-14 days, antihistamine drops, warm to cool compresses
What is the treatment for allergic conjunctivitis?
systemic antihistamines and topical antihistamines or mast cell stabilizers (Naphcon-A, Ocuhist, generics)
- epinatine
- azalastine
- emedatine difumarate
- levocabastine