WVSOM skin System 2012- Dugan Streptococci
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| Is Streptococci Gram (+) or (-)? | (+)
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| Does Streptococci posses catalase? | NO!
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| How do we classify Streptococci? | By hemolysis: Beta, Alpha or Gamma hemolysis in 5% sheep blood.
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| What are the defining characteristics of Group A Strep? | Hyaluronic acid Capsule, Fibrils that consist of M-proteins, Peptidoglycan,T and R proteins and Soluble virculence factors
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| What are some soluble virulence factors? | Streptokinase,Streptodornase, hyaluronidase, erthyrogenic toxin, NADase, Streptolysins
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| S.Pyrogenes causes which diseases? | pharyngitis, scarlet fever, impetigo, cellulitis, endocarditis, RHEUMATIC FEVER, Glumerulonephritis
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| What antibodies are used to screen for S. Pyrogenes? | Streptozyme test: ASO, Anti-DNAse B, AHase, anti-NAD
Antistreptolysin O- quantify antibodies to streptolysin O
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| What is the presentation of scarlet fever? | "strawberry" tongue
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| What treatment do we use for scarlet fever? | Long acting penicillin (10days) to protect against rheumatic fever
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| Group B strep causes which diseases? | Septicemia, meningitis, pneumonia
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| Group D strep causes which diseases? | UTI, Wounds, sepsis
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| what strep causes dental caries? | Viridans strep
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| Along with pneumonia, S.Pneumoniae causes what other diseases? | Otitis media, sinusitis
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| What are the characteristics of Pseudomonas aeruginosa? | Motile with polar flagella, oxidase positive, obligate aerobe, 42 degrees Celsius, fruity odor colonies
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| What virulence factors are associated with P. aeruginosa? | Pili, polysaccharide capsule, endotoxin, Exotoxin A
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| What is the function of exotoxin A? | Causes ADP- ribosylation of elongation factor 2 which INHIBTS PROTEIN SYNTHESIS
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| What is Acinetobacter? | oxidase negative (aerobic), nonfermentative, non motile,pleomorphic organsim Gram (-), multidrug resistant
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| what population is more at risk for infection with acinetobacter? | Soliders
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