Upper Respiratory Illnesses Flashcards
Should antibiotics be used to treat URIs?
Rarely!
URIs are mostly viral
What are the main viral culprits of the common cold?
Rhino-virus
Coronavirus
Adenovirus
Respiratory Syncytial Virus (RSV)- lower resp. infection
What is the clinical presentation for the common cold?
Duration of illness: 5-10days, up to 14 days
Nasal congestion and/or discharge
Sneezing
Sore throat
Cough
Low grade temp
Headache
Malaise
How will the symptoms of a sore throat differ with viral v. strep?
Viral sore throat- worse morning/night and good during day
Strep- persistent sore throat
What will the physical exam look like with a common cold?
- TM is normal, maybe slightly red, some clear fluid
Rhinorrhea, can be green/yellow or clear
Skin, mild scattered erythematous rash
Nasal mucous, swollen and red nasal cavity
Some cervical lymph nodes may be slightly enlarged
lungs are clear bilaterally
What are the differential diagnosis for the common cold?
Influenza- abrupt onset
Bronchitis- runny nose and rhonchi
Acute bacterial sinusitus- can get bacterial infection at end of viral cold
Allergic rhinitis- pale and boggy turbinates
pertussis- would have significant cough
What can help with the common cold’s nasal congestion symptom?
- Netti pot, steam shower, normal saline nasal spray
- Antihistamine to dry things out and help sleep
- Ipratropium bromide (nasal)- reduces fluid released from nose mucosa
- Cromolyn sodium (nasal)- reduces allergin triggers
- Intranasal decongestant like Afrin- opens passages, but can get rebound inflammation. Use 3 days MAX
- Decongestants- not for kids under 6
What can help with the common cold’s cough symptom?
Honey
Expectorants like Mucinex
Antitussive like Delsym, the DM in OTC cold medications
What is Otitis Media?
inflammatory or infectious process that leaves fluid in the middle ear
Viral, bacterial or fungal by origin
What are the risk factors of getting otitis media?
young age
Family Hx
Lack of breastfeeding
Tobacco smoke/air pollution
pacifier use
Day care with other kids
lack of access to medical care/ socioeconomic condition
Race/ethnicity
Season
Underlying disease
What is the difference between an acute OM and OM effusion?
Acute- fluid is not absorbed and acute inflammation and infection occur
Effusion- build up of fluid behind their TM without inflammation
What are the most common microbiota that cause acute otitis media in kids?
Strep pneumo- 66%
M. Catarrhalis- 59%
H. Influenzae- 29%
Viral- 10%
What is the clinical presentation of acute otitis media?
acute onset
May/may no be febrile
Otalgia- ear pain
Vomiting, diarrhea, ear rubbing
Associated with URI
What will the physical exam look like with acute otitis media?
TM- red, limited mobility, won’t see land marks, bulging, pus
May see URI sym- runny nose, coughing, temp, clear lungs
mastoid bone- non-tender
sinuses- tenderness
What is bullous myringitis?
development of vesicles in the superficial layers of the TM
look like blisters on the TM
What causes bullous myringitis?
Mycoplasma
What treats bullous myringitis?
Macrolide- like azithromax
How is acute otitis media treated in children who don’t go to daycare or this is their first infection?
Amoxicillin
80-90mg/kg/day in 2 divided doses, 12 hours apart
How is acute otitis media treated in children who attend daycare or have recurrent infections?
Augmentin: Amoxicillin/Clavulante
90mg/kg/day / 6.4mg/kg/day in 2 divided doses 12 hours apart
How is acute otitis media treated for a child allergic to penicillin?
Cefdinir
14mg/kg/day in 1 or 2 doses
How is mild/moderate AOM treated in adults?
Amoxicillin 500mg BID for 7-10 days
How is severe AOM defined and treated in adults?
Meaning: fever and significant hearing loss and severe pain
Tx: augmentin 875mg BID for 10 days
How is AOM treated in adults with a penicillin allergy?
Cefdinir 300mg BID for 10 days
What can be prescribed to help with the pain of an AOM?
Tylenol Kids: 15mg/kg Q4h
Tylenol Adult: 500-1000 mg Q6h
Ibuprofen Kids >6mo: 10mg/kg Q6h
Ibuprofen Adult: 600-800 mg Q8h
Antipyrine/benzocaine (auralgan) 2-4gtt TID-QID
When would you refer for AOM?
persistent OME or AOM
More than 4 episodes in 6 months or 6 episodes in a year
hearing loss
cholesteatoma
acute mastoiditis
What is recurrent AOM?
three or more episodes of acute otitis media within six to 18 months
What is herpes zoster oticus? AKA Ramsey Hunt Syndrome
Triad of:
1- herpes vesicles in auricle/canal
2- facial paralysis
3- ear pain
How is herpes zoster oticus treated?
prednisone 1mg/kg/day for 7 days OR Famciclovir 500mg po tid for 7 days OR Valacyclovir 1gm po tid for 7 days
What is mastoiditis?
Inflammation of mastoid air cells of temporal bone inside the mastoid process, usually as a complication of acute otitis media
Usually caused by Step. pneumo
How does mastoiditis present?
Tenderness, swelling of mastoid
Displaced ear
Fever
AOM
What is OME?
Otitis Media with Effusion:
effusion in the middle ear without evidence of infection persists after the AOM or related to allergic rhinitis due to dysfunction of the Eustachian tube
What is the clinical presentation of OME?
Afebrile, no otalgia or otorrhea
HEENT: TM with visible landmarks, TM maybe pearly grey, mildly erythematous, serous fluid behind TM, no bulging
Signs of URI maybe present
What are the differential diagnosis for OME?
AOM
MEE- middle ear effusion
how do you treat OME?
watchful waiting
What is tympanosclerosis? What causes it?
white scarring from T-tubes
incidental finding-
What is cholesteatoma?
an abnormal accumulation of keratin producing squamous cells in the middle ear
What causes cholesteatoma?
congenital OR
Acquired due to persistent, recurrent AOM that result in chronic prolonged negative pressure or perforation, which pulls in squamous epithelial cells into the middle ear.
What is the clinical presentation of cholesteatoma?
Hearing loss (conductive), tinnitus, persistent ear infections
What is found on physical exam with cholesteatoma?
White cyst usually in the posterior or anterior superior quadrant of the TM
What is the treatment for cholesteatoma?
refer to ENT
What is otitis externa?
Inflammation of the external canal that may extend to the auricle
often called ‘swimmers ear’
What are the most common pathogens for otitis externa?
S. Aureus
P. Aeruginosa
How does otitis externa present?
As acute presentation : pruritus, mild to moderate discomfort, and erythema
As progresses: edema, otorrhea (ear discharge), and conductive hearing loss
What does otitis externa look like on physical exam?
Pain and tenderness on palpation of tragus or auricle.
Canal is usually erythematous with exudate.
TM may or may not be visible.
Cellulitis may extend to the auricle.
In severe cases you may have hearing loss as well as cervical lymphadenopathy.
What are the differential diagnosis for otitis externa?
Cerumen impaction- esp if older
Forign body
Malignant otitis externa
What is the treatment for Otitis externa?
Aural toilet
Topical antibiotics with steroid and coverage for P. aeruginosa and S. pneumonia for 7 days
Pain tx with NSAID
Severe occlusion- place wick and change 1-3 days
When should otitis externa be referred?
Malignant otitis externa
Grossly inflamed or prolonged infection
How is otitis externa treated with a perforated TM?
Ciprofloxacin 0.3%/ dexamethasone 0.1% (Ciprodex) BID
OR
Ofloxacin 0.3% BID
How is otitis extra treated if the TM is intact?
Neomycin/polymyxin B/ hydrocortisone, solution or suspension TID or QID
What is ceruminosis?
build up or cerumen in ear canal
may block canal resulting full sensation, decreased hearing, pain or infection (otitis externa)
If hearing is decreased, it is usually very gradual so patient isn’t aware of it.
How is ceruminosis treated?
Irrigation- always direct stream along canal, not directly at TM. Can get messy. Important water is body temperature—not hot or cold
Rare pain—stop
Do not attempt if known or suspected tm perforation or tympanostomy tubes
How can ceruminosis be treated if the TM is perforated?
Use a Curette— Requires training
What is labryinthitis?
Acute unilateral labyrinthine dysfunction caused by viral inflammation of the vestibular nerve, bacteria or an AOM
How does labrynthitis present?
Vertigo
Nausea/vomiting
Tinnitus