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15 Cards in this Set
- Front
- Back
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What are the most impt. causative agents of acute meningitis?
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**Almost always bacterial***
Neisseria Meningitidis, Haemophilu influenzae type b, Strep. Pneum., Group B Strep (S. Agalact.), Listeria Monocytogenes |
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What are the most common causes of transverse myelitus?
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**Rare**
HSV-2, ENV |
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What is the most common cause of myelitis? Which is the most fatal form?
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Polio, Bulbar Polio
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What are the most common causative agents of brain abscesses?
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Staph, Strep, Oral Flora (including anerobes), Enterobacteriaceae
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What is PML and what causes it?
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Progressive Multifocal Demyelinating disease, JC virus
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What is SSPE and what causes it?
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Subacute sclerosing panencephalitus, measles virus
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What are the most common causes of encephalitis in the U.S.
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**Almost always viral**
1.Enteroviruses 2.La Crosse Virus 3.HSV 4.West Nile Virus 5. St. Louis Virus Pneumonic: Encephalitis is Lame bc Head Wounds Suck |
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What are the most common causative agents of bacterial meningitis?
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1. Strep Pneum **Most Freq in Adults**
2.Neisseria Meningitidis **Most freq. in children & Young adults** 3.Enteric Gram Neg. Rods 4.Group B Strep. 5.Listeria Monocytogenes 6.Haemophilus Influenzae B |
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What are the 2 forms of spore-forming bacteria that are medically important?
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**Both are Gram-positive rods**
1.Bacillus 2. Clostridium |
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What fungus is the most frequent cause of fungal meningitis?
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Cryptococcus
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What is fluconazoles MOA? What CNS pathogen is it used for?
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Blocks conversion of lanosterol to ergosterol. Used for maintenance therapy of Cryptococcus neoformans
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What does PAM stand for and what is its causative agent?
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Primary Amebic Meningioencephalitis; Naegleria Fowleri
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What is a positive Brudzinski sign?
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Flexion of the hips & knees when the neck is flexed in a supine position
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What is a positive Kernig Sign?
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Resistance to extending the knee when the hips & knees are flexed
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What is the only infectious agent that causes meningitis that produces an abnormal sense of smell?
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Naegleria fowleri --> PAM
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