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Anonymous
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7940
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2010-02-24 02:02:27
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bugs
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  1. gram + stain color
    purple-blue color
  2. gram - color
    red- retain safranin and iodine washes
  3. shapes of bacteria
    • Cocci
    • rods (bacilli)
    • spiral- dark field florecence
    • curved-ex. vibro (not in US)
  4. Cocci in clusters
    Staphylococci
  5. cocci chain
    streptococci
  6. staphylococcus are catalse?
    positive
  7. streptococcus is catalase?
    negative
  8. what staphylococcus is coagulase positive?
    Staph. Aureus
  9. Group A
    Strept. Pyogenes
  10. Group B
    Strept. agalactiae
  11. Group D
    • Enterococcus faecalis
    • Enterococcus faecium
  12. List Staphs
    • Staph aureus
    • epidermidis
    • saprophyticus
  13. List Strepts
    • Pyogenes
    • agalactiae
    • pneumonia
  14. Gram positive Cocci
    • Streptococcus pneumoniae
    • strept. viridans
  15. Gram Negative Cocci
    • Moraxella catarrhalis --- causes URI
    • Neisseria gonorrhea---STD
    • Neisseria Meningitidis--- meningitis

    these are invasive species
  16. Gram + Rods
    Listeria monocytogenes -- LRTI especially in alcoholics
  17. 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
  18. Rods Gram -
    nonenterobacteriaceae
    • pseudomonas aeruginosa-most pathogenic gram - rod likely in immunocompromised
    • stenotrophomonas (Xanthomonas) maltiphilia
    • hemophilus influenza
  19. 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
  20. ANEROBES: gram - rods
    • Bacteroides spp.
    • B. fragilis (usual pathogen)

    note: causes foul smelling abscesses
  21. Spirochetes
    • Treponema pallidum
    • Borrelia burgdorferi
  22. Atypical organsms
    why atypical?
    • ans: cant be grown
    • Chlamydia trochomatis -STD

    • Chlamydia pneumoniae
    • Legionella pneumoniae
    • mycoplasma pneumoniae (walking) these are water loving

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