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7 Cards in this Set
- Front
- Back
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Most common cause of human bites?
What type of microbial infection? 2 y/o boy bitten by a dog: Considerations? Usual bacteria in dog/cat bites: |
fistfight - closed fist vs teeth
usually polymicrobial Any medical conditions/allergies? UTD w/ vaccinations? Rabies prophylaxis? Pasteurella, Capnocytophaga canimorsus, Staph, Strep (avg. 5 microbes per wound) |
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Pasteurella appearance on slide?
Complications more common in cat bites? G- fusiform bacilli, requires CO2 for growth: |
G- coccobacillus, non-motile
osteomyelitis, septic arthritis (sharper teeth) capnocytophaga canimorsus |
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G- slender bacilli/coccobacilli, normal flora of upper respiratory tract/GI:
Most common? How does it survive in O2? G+ bacilli, fialamentous, slow growers: G- pleomorphic, normal respiratory/GI flora: |
Bacteroides sp.
B. fragilis produces superoxide dismutase Actinomyces Fusobacterium |
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Commonly seen in IV users who lick needles before injection, HACEK group of endocarditis:
Histological appearance? Anaerobic G+ cocci, normal flora in mouth, seen with human bites, inherent Abx resistance: |
Eikenella corrodens
fastidious G- pleomorphic, facultative anaerobe, produces bleach-like odor Peptostreptococci |
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Management of dog/cat bites?
Organism in cat scratch fever, major reservoir in cats, most common cause of unilateral lymphadenitis in kids: Appearance on slide? |
Cx, irrigation/debridement, wound closure, Abx
Bartonella henselae small, aerobic, pleomorphic, short G- bacilli; difficult to culture/Gram stain |
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G- bacillus, string bead appearance, fastidious, rat bite fever:
G- bacillus, spiral shaped, darting motility, "sodoku" clinical appearance: (recurrent fever, longer incubation): |
Streptobacillus moniliformis
Spirillum minor |
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Rhabdovirus, -ssRNA virus, bullet shaped:
Two types of rabies? Detection post-mortem? |
Rabies virus
Furious - aggressive, agitation, confusion, salivation Dumb - weakness, dysphagia, salivation, choking Ag in brain, Negri bodies |
