Gram-Positive Microbe Identification (First Aid 2015) – Flashcards
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Staphylococcus aureus
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• gram positive • cocci • catalase positive • coagulase positive
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Staphylococcus epidermidis
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• gram positive • cocci • catalase positive • novobiocin sensitive
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Staphylococcus saprophyticus
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• gram positive • cocci • catalase positive • novobiocin sensitive
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Streptococcus pneumoniae
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• gram positive • cocci • catalase negative • alpha hemolytic • capsule • optochin sensitive • bile soluble
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Streptococcus viridans
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• gram positive • cocci • catalase negative • alpha hemolytic • no capsule • optochin resistant • bile insoluble
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Streptococcus pyogenes (Group A)
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• gram positive • cocci • catalase negative • beta hemolytic • bacitracin sensitive
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Streptococcus agalactiae (Group B)
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• gram positive • cocci • catalase negative • beta hemolytic • bacitracin resistant
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Enterococcus (Group D)
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• gram positive • cocci • catalase negative • gamma hemolytic • growth in bile • growth in 6.5% NaCl
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Non-Enterococcus (Group D)
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• gram positive • cocci • catalase negative • gamma hemolytic • growth in bile • no growth in 6.5% NaCl
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Clostridium
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• gram positive • rods • anaerobe
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Corynebacterium
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• gram positive • rods
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Listeria
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• gram positive • rods
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Bacillus
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• gram positive • rods • aerobe
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Actinomyces
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• gram positive • branching filaments • anaerobe • not acid fast
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Nocardia
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• gram positive • branching filaments • aerobe • acid fast
