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gram + stain color
purple-blue color
gram - color
red- retain safranin and iodine washes
shapes of bacteria
Cocci
rods (bacilli)
spiral- dark field florecence
curved-ex. vibro (not in US)
Cocci in clusters
Staphylococci
cocci chain
streptococci
staphylococcus are catalse?
positive
streptococcus is catalase?
negative
what staphylococcus is coagulase positive?
Staph. Aureus
Group A
Strept. Pyogenes
Group B
Strept. agalactiae
Group D
Enterococcus faecalis
Enterococcus faecium
List Staphs
Staph aureus
epidermidis
saprophyticus
List Strepts
Pyogenes
agalactiae
pneumonia
Gram positive Cocci
Streptococcus pneumoniae
strept. viridans
Gram Negative Cocci
Moraxella catarrhalis --- causes URI
Neisseria gonorrhea---STD
Neisseria Meningitidis--- meningitis
these are invasive species
Gram + Rods
Listeria monocytogenes -- LRTI especially in alcoholics
Rods gram -
enterobacteria- colonized in gut
E. Coli
Klebsiella pneumoniae
proteus mirabilis
proteus vulgaris
providencia stuartii
enterobacter spp.
Morganella morganii
Serratia spp.
all are oxidase neg
Rods Gram -
nonenterobacteriaceae
pseudomonas aeruginosa-most pathogenic gram - rod likely in immunocompromised
stenotrophomonas (Xanthomonas) maltiphilia
hemophilus influenza
ANEROBES gram + rod
Clostridium difficile- vanco not absorbed therefore inter luminal conc high
start metronidazole because narrow and less resistance no response 3-5 day switch to oral vanco
ANEROBES: gram - rods
Bacteroides spp.
B. fragilis (usual pathogen)
note: causes foul smelling abscesses
Spirochetes
Treponema pallidum
Borrelia burgdorferi
Atypical organsms
why atypical?
ans
: cant be grown
Chlamydia trochomatis -STD
Chlamydia pneumoniae
Legionella pneumoniae
mycoplasma pneumoniae (walking) these are water loving
Author
Anonymous
ID
7940
Card Set
ID
Description
bugs
Updated
2010-02-24T07:02:27Z
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