Respiratory - bacteria

Created by blueskiez 

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80 terms

rhinitis

caused by viruses only

pharyngitis

sx: pseudomembrane

gangrenous; sometimes precipitated by measles

noma

peritonsillar abscess

caused by bacteria only

may cause aspiration pneumonia

peritonsillar abscess

candida

can cause stomatitis

retropharyngeal abscess

sx: change in phonation of voice

diptheria

treat with antitoxin + abx

epiglottitis

muffled phonation

laryngotracheitis

medical emergency

bubbling ronchi

bronchitis

dullness to percussion

pneumonia

myco + fungus

cause of chronic pneumonia

pleural effusion

loss of costophrenic angle

bronchopneumonia

patchy infiltrates

lobar pneumonia

uniform consolidation

viral pneumonia

diffuse interstitial pattern

pyogenic strep

contains lancefield antigen (cell wall carb)

s sanguis, salivarius, mutans

viridans strep

s equi, bovis, agalactiae

pyogenic strep

pyogenes

virulence: protein M

penicillin

tx of strep throat

strep throat

sx: pastia's lines

s pneumonia

virulence: thick capsule, pneumolysin

s pneumonia

MC cause of CA-pneumonia

protein M

degrades C3b

neisseria

not normal flora

c diptheriae

grown on loeffler's serum

diptheria toxin

inhibits EF-2

diptheria

sx: pseudomembrane

h influenza

causes meningitis in kids <2yo, epiglottitis in kids 2-5

h influenza

requires factor x and v for growth

influenza, klebsiella

virulence factor: capsule

3rd gen cephalosporin

tx of h influenza

b pertussis

looks like droplets of mercury

tracheal cytotoxin

produces NO

adenylate toxin

increases cAMP conversion

destroyes cilia

tracheal cytotoxin

A-B toxin

allows pertussis to bind to epithelia

pertussis

grows on charcoal blood agar with cephalosporin

clarithromycin

tx of pertussis

TB

has LAM

m kansasii

photochromogenic colonies

m avium intracellulare complex

cavitary pulmonary disease

m scrofulaceum

granulomatous cervical lympadenitis

diptheria

grows on tinsdale

legionella

grows on BCYE

legionella

transmitted by aerosolized water

legionella

macrophage invasion potentiator

legionella

dx with DFA

legionella

produces B-lactamase

m pneumonaie

fried egg appearance

m pneumonaie

penicillin resistant (no cell wall)

m pneumoniae

cytadhesin

m and c pneumoniae

"walking pneumonia"

klebsiella

pink colonies on macconkey

klebsiella

mucoid colonies

klebsiella

affects very old and very young, alcoholics

pseudomonas

virulence: exotoxins A, exoenzyme S, elastase

exotoxin A

inhibits EF-2

exoenzyme S

ADP ribosylation

pseudomonas

resistance mediated by porins

chlamydia

elementary bodies => reticular (inclusion bodies)

c trachomatis

genital infxn, conjunctivitis

c psittaci

aerosol, usually bird keepers

c pneumoniae

implicated in atherosclerosis

c pneumoniae

grown on Hep2 lines

b anthracis

medusa-head colonies

b anthracis

sensitive to y-phage

b anthracis

virulence: poly-D-glutamyl capsule

anthrax toxin

has EF, PA, and LF factors

yersinia

fried egg, coppered hammer appearance

Yop

inhibits platelet aggregation & inflammatory cytokines

yersinia

virulence: PAI, F1, plasminogen, plasmid

yersinia

tx: streptomycin

nocardia

AFB positive, forms branched hyphae

n brasiliensis

acquired by thorn prick

nocardia

colonies smell like dirt. white to orange pigment.

nocardia

sx: pneumonia + focal CNS signs

rhodococcus

salmon pink, mucoid colonies

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