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
Q

where does aspiration usually end up?

A

right lower lobe

26
Q

outpatient pneumonia with no cardiopulmonary disease or other modifying risk factor –> tx

A

azithromycin or clarithromycin or doxycycline

27
Q

outpatient pneumonia, with cardiopulmonary disease and or modifying factors –> tx

A

quinolone or beta-lactam plus or macrolide or doxycycline

28
Q

hospitalized pneumonia tx

A

IV beta lactam or macroloide or doxycycline or quinoone

29
Q

hospitalized, severe pneumonia tx

A

IV beta lactam and either macrolide or quinolone

30
Q

define flu

A

fever 100F with cough or sore throat in the absence of known cause other than influenza

31
Q

when do you need to give tamiflu

A

best w/i 48 hrs

32
Q

high risk flu pts

A

less than n5
more than 65
pregnant
high risk comorbid (obesity)

33
Q

diabetic pt with proptosis, ptosis, orbital swelling, cellulitis –>

A

rhinocerebral mucormycosis

**urgent treatment

34
Q

the decision regarding hospitalization should be based on…

A

stability of pts clinical condition, risk of death and complication, presence or absence of other active medical problems, and psychosocial issues