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15 Cards in this Set
- Front
- Back
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How do we differentiate Sterp from Staph in the lab
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Catalase Neg
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On Blood Agar what three results can you get
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Alpha - partial hemolysis green
Beta - clear colonies Gamma - no hemolosys |
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What Strep are Alpha Hemolytic
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S Pneumo - + Quellung Optochin Sens.
S Viridans - No Capsule - Optochin Resis. |
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What Strep are Beta Hemolytic
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GAS - Bacitracin Sens
GBS - Bacitracin Res |
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What are gamma Hemolytic
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Enterococcus
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What are Lancefield antigens
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Classification of the C antigen of Carb in the cell wall
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What dz does GAS cause (6)
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Pharyngitis, cellulitis, Scarlet Fever, Strep TSS, RF, PSGN
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Antigenic Markers fo GAS
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C Carb
M Protein - Antigenic, Protect from complement, Phago, site of antibody opsonization |
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GAS Enzymes (4)
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Streptolysin O
Streptolysin S - O2 Sens. Pyrogenic Exotoxin - Scarlet fever Others - Steptokinas DNAse Hyalurinidase |
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Sptreptolysin O (4)
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O2 Labile
Causes Beta Hemolysis Antigenic Anti-ASO antibodies Dx |
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Pharyngitis Features (4)
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Erythematous Tonsils
Purulent Exudate Temp LN |
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Skin INfections of GAS (4)
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Folliculitis
Cellulitis Impetigo Necrotizing Fascitis |
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Sx - Redness, swelling, warmth, and pain of Skin
Si - Inflammation of the connective tissue underlying the skin Hx - cut |
Celulitis
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Fever Pain Sweling over area
Swelling, Bronzing, Hemorrhagiv Bulla Necrosis in Dermis and Subcut fat |
Necrotizing Fasciitis
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Rheumatic Fever (5)
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Chorea
Myocariditis Rash Nodules Polyarthiris |
