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33 Cards in this Set
- Front
- Back
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Is Strep catalase pos or neg?
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neg
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What type of atm does strep like?
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anaerobic or CO2
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What do strep look like?
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pairs or short chains
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What are the symptoms of rheumatic fever?
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PECCS-polyarthritis, erythema marginatum, chorea, carditis, subcutaneous nodules
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What are the symptoms of streptococcal pharyngitis?
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red, swollen tonsils, pus, temp, LAD
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What is erythema marginatum?
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in Rheumatic fever, redness form center out
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What causes impetigo?
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Caused by Group A strep, S. pyogenes
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What is impetigo?
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localize skin diseae, pustule with yellow crust on face and extremities
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What is erysipelas?
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infection by S. pyogenes, erthema, well demarcated on face, fever, LAD
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What causes Scarlet fever?
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erythrogenic toxin, pyrogenic toxin
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What is the key feature of scarlet fever?
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strawberry tongue
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What is necrotizing fascitis?
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strep infection of deep SQ tissue
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What is toxic shock-like syndrome?
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s. pyogenes--multisystem organ failure, SPE toxins,
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What is the characteristic seen in the cardiac lesions associated with cardiac lesions?
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aschoff bodies
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What virulence factors are responsible for Group A strep lysing RBCs?
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streptolysin O and Streptolysin S
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Which attachment protein is increased with increased CO2?
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Ptn M--attachment to epidermal
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Which attachment protein is increased with increased O2?
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Ptn F--binds to fibronectin of epithelial cells
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What is the importance of S. pyogenes M ptn?
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antiphagocytic by degrading C3b
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What do you use to treat s. pyogenes?
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PCN, amplicillin, cephalosporins, erythromycin
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What are the three pathogens associated with neonatal meningitis?
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GBS, E. coli, Listeria monocytogenes
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What is treatment for GBS?
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PCN, ampicillin, Erythromycin, clindamycin
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What is Group C strep associated with?
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veterinary infections, college age pharyngitis, sepsis
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What is group F strep associated with?
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abscesses
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What is group G strep associated with?
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pharyngitis, neonatal sepsis
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What causes dental caries?
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virdens strep, s. mutans
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What do virdens strep cause?
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endocarditis, sepsis in pt without neutrophils, dental caries
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What is the difference between SBE of staph and strep?
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Staph is quick, strep is slow
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Which bacteria can grow well in Bile?
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enterococcus
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What do enterococcus cause?
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UTI, biliary tract infections, bacteremia, SBE
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What does the presence of an S. bovis infection indicate?
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colon CA
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Which is PYR positive?
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enterococcus
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What do you use to treat VRE?
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linexolid
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How do you tell the difference between s. pneumona and s. sanguis (viridans)
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S. sanguis is resistant optochin
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