43: Respiratory Tract Infections - Kanis Flashcards
upper respiratory infections URI aka
acute infective rhinitis acute rhinopharyngitis nasopharyngitis acute coryza common cold
URI are usually caused by…
viruses (rhinovirus 40%0
leading diagnosis for which antibiotics are prescribed on an outpatient basis
URI
antibiotics have _____ role in uncomplicated and non-specific URI
NO **
treatment for URI should be symptom based
suppresses medullary cough center
dextromethorphan
increases volume and decreases viscosity of mucous
guaifenisen
true or false: zinc, vitamin C, echinacea have been shown to help colds
false
no consistent benefit shown
most commonly involved sinus in sinusitis
maxillary
what lines the sinuses?
respiratory epithelium
- produces mucus
- ciliary action
- should remain sterile
acute sinusitis
- less than 4 weeks
- often with preceding viral URI
______ rhinosinusitis is more common than ______
viral
bacterial
common sinusitis pathogens
strep. pneumonia
haemophilus influenza
*bacterial causes are better described
diabetic patient with a sinusitis infection
could be rhinocerebral mucormycosis ** needs urgent evaluation
sinusitis diagnosis is based on
illness duration
7d with facial or toot pain –> bacterial sinusitis
sinusitis treatment
decongestants
saline lavage
> 7d or severe sinusitis treatment
amoxicillin or bactrim
for 3 weeks
what might cause chronic sinusitis?
> 12 wks
due to impairment of mucociliary clearance from repeated infection rather than to persistent bacterial infection
nosocomial =
hospital acquired pneumonia
common bacterial pathogens in pneumonia
strep pneumonia
staph aureus
COPD pneumonia - what pathogen?
haemophilus influenzae
alchoholism pneumonia - what pathogen?
kelbsiella
nosocomial pneumonia
pseudomonas
treat nosocomial?
aminoglycosides, 3rd gen ceph, anit-pseudomonal PCNs
symptoms of pneumonia
cough
dyspnea
sputum
pleuritic chest pain