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20 Cards in this Set
- Front
- Back
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shape B. fragilis
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pleoporphic: "aftey pin" appearance
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virulence factor B. fragilis
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antiphaocytic capsule, LPS, SOD, heparinase, beta-lactamase, collagenase, hylauronidase
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pathophysiology B. fragilis
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translocation, surgical mishap, or trauma,
most important and common anaerobic pathogen borth stimulated by bile |
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disease B. fragilis
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symptoms usually indolent and slowly progressive (abscess), but onset can be rapid
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lab diagnosis B. fragilis
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growth on selective media
resistanct to penicillin growth on bile |
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treatment B. fragilis
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B-lactamase stabilized antibiotics (metonidazole, clkindamycin)
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treatment of P. melaninogenicus
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B-lactamase stabilized antibiotics, increasing number of strains produce B-lactamase)
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pathophysiology P. melaningogenicus
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trauma, surgery, aspiration
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disease P. melaningogenicus
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indolent pneumonia, foul breath
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lab diagnosis P. melaninogenicus
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black colonies, fluorescence, requires vitamin K and hemin
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pathophysiology of P. asaccharolytica and gingivalis
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trauma, surgery, aspiration
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disease of P. asaccholytica and gingivalis
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indolent pneumonia, foul breath, head and neck infections
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lab diagnosis of P. asaccharolytica and gingivalis
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black coloines, susceptible to vancomycin
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treatment of P. asaccharolytica and gingivalis
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B-lactamase stabilized antibiotics
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shape F. nucleatum
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needle shaped bacillus
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diseases of f. nucleatum
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most commonly lung abscess
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lab diagnosis of F. nucleatum
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diagnostic fram stain appearance. susceptible to kanamycin an dcolistin. variable growth on 20% bile
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treatment of F. nucleatum
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peniclling G or B-lactamase stabilized antibiotics
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definition of maloderous
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short chain fatty acids are usual metabolic end products
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how to grow gram negative anaerobess
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grow on vacomycin get rid of gram positive, kanamycin gets rid of facultative and aerobes, antibiotic susceptibility testing
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