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15 Cards in this Set
- Front
- Back
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What are the features of Neisseria?
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Gram Negative, Diplococci with flattened sides
Oxidase Positve |
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What are the DISTInguishing features of Niesseria Meningitis?
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GRAM NEG.
KIDNEY BEAN SHAPed Dipplococci Large Capsule: Latex Aggutination; ID N. mengitidis capsular antigens in CSF. GROWN ON CHOColate agar in 5% CO2 atmosphere and FERMENTS MALTOSE (N. Gon Deos NOT) |
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What is the Oxidase test?
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Oxidase Test
1.) Flood the colony with phenylenediamine in the presence of oxidase, 2.) phenylenediamine turns Black THE MAJOR OXIDASE NEGATIVE GRAM NEGATIVES are ENterobacteriacae |
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What are the Virulance factors of Neisseria Meningitidis?
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Capsule: Antiphagocytitic
IgA protease: Allows oropharynx colonization. Endotoxin: LPS: Fever: Overproduction of outer membrane, |
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Defeciency in what complements predispose u to N. Meningitidis infection?
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C5-C8
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What are the disease N. Meninigitidis cause?
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Meningitis and Meningococcocemia
ABRUPT ONSET FEVER, CHILLS, MALAISE, Prostration and a PEtechial rash.. Waterhouse Freidrichson: Fulminant Meningitis: Eccymosis, DIC, Shock, COMA, and Death. |
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What is the treatment of N. Meningitidis?
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Ampicillin and cefotaxime: Neonates and infants
Older: CEFOTAXime and Ceftriaxone Prophylaxis: RIfampin |
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Neisseria Gonorrhea: Features
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Gram Neg. Kidney bean shaped diplococci
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What is the Path of N. GoN
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Pilli: Helps with attatchment to mucosal surfaces and inhbits phagocytic uptake.
Antigenic Variation OMP-1: Used in serotyping IGA Protease: Colonization |
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What dz. caused by N. Gon?
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Urethritis: Male
Endocervicitis: Female: PID Infants: OPTHALMIA: Blind if untreated |
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How is N. Gonorrhea Diag?
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Intracellular GRAM NEG diplocci in PMN
Culture on THAYER-MARtin: OXIDASE POSITIVE: NON MALTOSE fermenter NO capsule. |
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What is the TX of N. GOn
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Ceftriaxone wtith Doxycycline of chlymidia suspected.
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How do you prevent N. Gon in neonates
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Erythromycin or silver nitrate in newborn eyes.
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What are the features of Moraxella Catarrhalis
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It is a Gram Neg. Diplococcus..Normal oral flora
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What disease does Moraxella cause
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Otitis media, sinusitis..
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