shosh: gram negatives

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shosh: gram negatives
2011-07-11 13:16:06

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  1. Gram negative coccus, oxidase positive, glucose and maltose fermenter
    N. menigitidis
  2. Gram negative coccus, oxidase positive, can ferment glucose but not maltose
    N. gonorrhea
  3. Major virulence factors of neisseria meningitidis
    Antiphagocytic capsule
  4. Treatment for N. meningitidis
    Penicillin G or ceftriaxone
  5. Thayer Martin agar
    Use to isolate N. gonorrhea
  6. Positive nitrite test (bacteria can reduce nitrates to nitrites)
    Enterobacteriaceae (enterobacter, e. coli, klebsiella, proteus, salmonella, serratia, shigella, yersinia)
  7. EMB agar
    Lactose fermenters
  8. MacConkey's agar
    Lactose fermenters
  9. Lactose fermenting enterobacteriaceae
    E. coli, citrobacter, klebsiella, serratia
  10. Non-lactose fermenting enterobacteriaceae
    Shigella, salmonella, proteus, yersinia
  11. Are enterobacteriaceae oxidase negative or oxidase positive?
  12. Gram negative non-motile rod that does not ferment lactose and has no capsule
  13. Enterobacteriaceae that have a capsule (K antigen)
    Klebsiella and salmonella
  14. Non-motile enterobacteriaceae
    Klebsiella and shigella
  15. Treatment of shigella
  16. Three bacteria that will give rise to PMNs in stool sample
    Shigella, salmonella, campylobacter (invasive)
  17. Gram negative motile lactose fermenting rod
    E. coli
  18. Antigen that determines pathogenecity of E. coli causing neonatal meningitis
    K1 capsular antigen
  19. Enterohemorrhagic E. coli
    • Gram negative lactose fermenting motile rod
    • Produces shiga-like toxin that causes bloody diarrhea
    • Transmitted by poorly cooked beef
    • Can cause HUS in children
  20. Treatment of E. coli UTI
  21. Drug that can bind to and inactivate E. coli's enterotoxins
    Bismuth subsalicylate
  22. Motile gram negative rod, cannot ferment lactose, has a capsule
  23. Bacteria ingested with raw eggs, contaminated chicken, contaminated water, or contact with reptiles
  24. Gram negative non-motile lactose fermenting rod, has a capsule
  25. Causes lobar aspiration pneumonia in alcoholics, may give rise to lung abscesses and current jelly sputum
  26. Highly motile, gram negative rods that cause UTIs and do not ferment lactose
  27. Struvite stones
    Caused by proteus UTI, which produces urease. Urease raises urine pH, which causes precipitation of struvite stones
  28. Comma shaped gram negative rod, oxidase positive, causes rice-water diarrhea
    Vibrio cholera
  29. Watery or bloody diarrhea with fever and abdo pain after eating shellfish
    Vibrio parahemolyticus
  30. Gram negative oxidase positive rods with polar flagella that do not ferment sugars
  31. Major virulence factor of P. aeruginosa
    Elastase (allows bacterium to invade blood vessels, especially in CF patients)
  32. Treatment for P. aeruginosa infection
    • Piperacillin or ticarcillin
    • An aminoglycoside
  33. Non-motile gram negative coccobacillus with bipolar staining that requires cysteine in growth medium
    Francisella tularensis
  34. Soft tissue infection following animal bite
    Pasturella multocida
  35. Small, pleomorphic gram negative coccobacillus that grows on chocolate agar, or blood agar streaked with staph
  36. H. influenza vaccine
    Polysaccharide capsular antigen, conjugated to tetanus toxoid, or N. meningitidis membrane protein
  37. Bordetella
    • Causes whooping cough
    • Pertussis toxin inhibits Gi protein
    • Grows on Bordet-Gengou agar
  38. Gram negative bacteria that invades macrophages, is transmitted in aerosols, and requires iron and cyteine for growth
  39. Charcoal yeast extract
  40. Clinical manifestations of legionella
    • Pontiac fever--mild, febrile illness
    • Mild, atypical pneumonia
    • Legionnaires disease--severe pneumonia
  41. Treatment for legionella