43: Respiratory Tract Infections - Kanis Flashcards

1
Q

upper respiratory infections URI aka

A
acute infective rhinitis
acute rhinopharyngitis
nasopharyngitis
acute coryza
common cold
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2
Q

URI are usually caused by…

A

viruses (rhinovirus 40%0

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3
Q

leading diagnosis for which antibiotics are prescribed on an outpatient basis

A

URI

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4
Q

antibiotics have _____ role in uncomplicated and non-specific URI

A

NO **

treatment for URI should be symptom based

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5
Q

suppresses medullary cough center

A

dextromethorphan

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6
Q

increases volume and decreases viscosity of mucous

A

guaifenisen

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7
Q

true or false: zinc, vitamin C, echinacea have been shown to help colds

A

false

no consistent benefit shown

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8
Q

most commonly involved sinus in sinusitis

A

maxillary

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9
Q

what lines the sinuses?

A

respiratory epithelium

  • produces mucus
  • ciliary action
  • should remain sterile
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10
Q

acute sinusitis

A
  • less than 4 weeks

- often with preceding viral URI

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11
Q

______ rhinosinusitis is more common than ______

A

viral

bacterial

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12
Q

common sinusitis pathogens

A

strep. pneumonia
haemophilus influenza

*bacterial causes are better described

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13
Q

diabetic patient with a sinusitis infection

A

could be rhinocerebral mucormycosis ** needs urgent evaluation

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14
Q

sinusitis diagnosis is based on

A

illness duration

7d with facial or toot pain –> bacterial sinusitis

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15
Q

sinusitis treatment

A

decongestants

saline lavage

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16
Q

> 7d or severe sinusitis treatment

A

amoxicillin or bactrim

for 3 weeks

17
Q

what might cause chronic sinusitis?

A

> 12 wks

due to impairment of mucociliary clearance from repeated infection rather than to persistent bacterial infection

18
Q

nosocomial =

A

hospital acquired pneumonia

19
Q

common bacterial pathogens in pneumonia

A

strep pneumonia

staph aureus

20
Q

COPD pneumonia - what pathogen?

A

haemophilus influenzae

21
Q

alchoholism pneumonia - what pathogen?

A

kelbsiella

22
Q

nosocomial pneumonia

A

pseudomonas

23
Q

treat nosocomial?

A

aminoglycosides, 3rd gen ceph, anit-pseudomonal PCNs

24
Q

symptoms of pneumonia

A

cough
dyspnea
sputum
pleuritic chest pain

25
where does aspiration usually end up?
right lower lobe
26
outpatient pneumonia with no cardiopulmonary disease or other modifying risk factor --> tx
azithromycin or clarithromycin or doxycycline
27
outpatient pneumonia, with cardiopulmonary disease and or modifying factors --> tx
quinolone or beta-lactam plus or macrolide or doxycycline
28
hospitalized pneumonia tx
IV beta lactam or macroloide or doxycycline or quinoone
29
hospitalized, severe pneumonia tx
IV beta lactam and either macrolide or quinolone
30
define flu
fever 100F with cough or sore throat in the absence of known cause other than influenza
31
when do you need to give tamiflu
best w/i 48 hrs
32
high risk flu pts
less than n5 more than 65 pregnant high risk comorbid (obesity)
33
diabetic pt with proptosis, ptosis, orbital swelling, cellulitis -->
rhinocerebral mucormycosis **urgent treatment
34
the decision regarding hospitalization should be based on...
stability of pts clinical condition, risk of death and complication, presence or absence of other active medical problems, and psychosocial issues