gram - rods enteric tract part 2 Flashcards
this causes entercolitis in kids a lot and comes before GBS
c jejuni
campylobactr properties
curved gram -
comma or s shaped
microaerophilic
c jejuni grows at ___ and _____ does not
low temps; c intestinalis
microaerophilc?
org grows best in 5% O2
campylobactr transmission
fecal oral
source of organism for campylobactr
cattle, chx, dogs
trmt c jejuni enterocolitis
erythromycin or cipro
campylobactr vaccine
none
infection with h pylori is a risk for
colonic carcinoma
h pylori causes these diseases
gastritis and peptic ulcers
linked to mucosal associated lymphoid tissue lymphomas (MALT)`
h pylori
helicobactr antigen in stool can be used for what
dx or confirm trmt is working
mcc infectious chronic active gastritis and PUD
h pylori
most gastric carcinomas are from
h pylori
trnasmission h pylori
person to person
helicobactr properties
curved gram - rod
urease +
h pylori trmt
PPI- Lansoprazole or omeprazole
ATB- amoxicillin and metronidazole
what can we use to treat h pylori if ppi fails
peptobismol
klebsiella, enterobactr and serratia are ____ teh enteric tract
outside
what infections do klebsiella, enterobactr and serratia cause
pneumonia and uti
where are klebsiella, enterobactr and serratia on the human body
LI
_____ large polysaccharide capsule which gives it a striking mucoid appearance
k pneumoniae
____ makes red pigmented colonies
s marcescens
k pneumoniae has a _____ capsule
thick
this organism causes pneumonia when respiratory devices are contaiminated as well as endocarditis in IVDU
serratia
proteus, providencia, and morganella are _____ the enteric tract
outside
proteus, providencia, and morganella causes these diseases
CA and HA UTI
proteus, providencia, and morganella properties
gram - rod
urease producer
motile
make phenylalanine deaminase (distinguishing factor)
____ makes urease which is an important factor in urinary stones
p mirabilis
some strains of e coli have Sis A and Sis B which do this
suppress inflammatory response
when p mirabilis makes urease what does it do
alkalizes urine and makes stones with struvite
struvite is in
urinary stones
is p mirabilis a common cause of uti
no
ppl with long term catheters are susceptible to this organism
p mirabilis
who does p aeruginosa infect
lowered host defenses
lesion caused by p aeruginosa
ecthyma gangrenosum-black and necrotic
MCC ventilator associated pneumonia
p aeruginosa
pseudomonas properties
gram - rod
aerobic- nonfermenters
oxidase +
grow in water with few nutrients like tap water
green hue and fruity color
pseudomonas
pyocyanin?
pigment in p aeruginosa that colors a wound blue and damages cilia and mucosal cells of resp tract
pyoverdin/fluorescin?
yellow green pigment that fluoresces under light
colonies of p aerginosa have a _____ appearance
mucoid
where does p aerginosa colonize
URT and skin in moist areas like pits
where is p aerginosa found in the world
soil and water
most clearly associated with virulence in p aerginosa
Exo S
p aerginosa virulence factors
endotoxin, exotoxin A, elastases and proteases, exo S
mcc serious anaerobic infections
bacteroides; usually bacteroides frigilis
bacteroides and prevotella properties
anaerobic
spore forming
gram - rods
bacteroides human pathogen species
b fragilis and b corroden
b fragilis are located here in the human body
colon
b melaninogenica and b corrodens are located here in the human body
mouth
fusobacterium located in human body
normal flora of mouth, colon, F genital tract
gram - rod with pointed ends
fusobacterium characteristscs
in mixed infections
fusobacterium
vincents angina and lemierres are caused by
fusobacterium
