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10 Cards in this Set
- Front
- Back
What can cause black lesions on skin?
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Pseudomonas, Anthrax
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Gram positive rods, Club-shaped
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Corynebacterium diptheriae
-pseudomembranes -granules -vaccine against toxoid |
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Tzanck Test
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detects multinucleated giant cells of HSV -1, 2 and VZV
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Hepatitis A comes from which virus family?
Hepatitis C? |
-Picornaviridae
-Flaviviridae |
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Where do enveloped viruses get their membranes?
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plasma membrane (except Herpes viruses, get their envelopes from Nuclear Membrane)
Naked viruses: -DNA = PAPP: Parvo, Adeno, Papilloma, Polyoma -RNA = CPR: Calci, Picorna, Reo |
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What does a positive leukocyte esterase test tell you?
positive nitrite test? |
A UTI is bacterial
-Gram negative (E. Coli, Klebsiella) |
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Which bacterial toxins lyse the cell membranes and how?
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Clostridium Perfringens: alpha toxin, which is a phospholipase that damages cell membranes.
Streptococcus perfringens: streptolysin O, which degrades the cell membranes. Anti-streptolysin O used to diagnose rheumatic fever. |
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What does Pertussis toxin do?
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overactives AC (incr cAMP) to IMPAIR PHAGOCYTOSIS.
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What is the major virulence factor of endotoxin?
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Lipid A: induces TNF and IL-1
(O polysaccharide is the antigen, used to classify gr neg bugs) |
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What grows on Thayer-Martin (VPN) Media?
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Neisseria species.
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