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10 Cards in this Set
- Front
- Back
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distinguish staph and strep wrt catalase reaction
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staph are catalase positive
strep are catalase negative |
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distinguish staph and strep wrt morphology
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staph grow in clusters
strep grow in strips |
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groups of strep wrt hemolytic capacity
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alpha hemolytic strep PARTIALLY lyse RBCS
beta hemolytic strep completely lyse RBCs gamma hemolytic strep are non-hemolytic |
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alpha hemolytic strep
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PARTIALLY lyse RBCS, leaving a greenish area of discoloration on a bld agar plate - green area tcontains unlysed RBCs and a hemoglobin metabolite
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beta hemolytic strep
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completely lyse RBCs, leaving a clear zone of hemolysis around the colony on a bld agar plate
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gamma hemolytic strep
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non-hemolytic
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4 infections of grp A beta-hemolytic strep
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streptococcal pharyngitis
streptococcal skin infections scarlet fever streptococcal TSS |
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lancefield antigens
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antigens of the C carbohydrate found on bacterial cell wall - used to describe groups of Strep
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5 important groups of Strep
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Lancefield groups A, B, D
Strep pneumo Viridans group of Strep |
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2 delayed antibody mediated diseases of Streptococcus
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rheumatic fever
glomerulonephritis |
