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7 Cards in this Set
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- Back
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Describe the appearance of N. asteroides on light microscopy.
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Gram+ rods forming branching, beaded filaments. Nocardia is also slightly acid fast due to the mycolic acid in its cell walls.
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Where is Nocardia normally found?
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In the soil. Nocardia is never a normal flora.
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Does Nocardia require O2?
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Yes. Nocardia is aerobic, in contrast to Actinimyces, an anerobe.
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How is Nocardia transmitted?
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Transmitted via inhalation, producing lung abscesses and cavitations(it can be confused with Mycobacterium tbc)
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How does a Nocardia infection manifest?
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Infection with Nocardia can produce pneumonia, lung abscesses, and can spread systemically. Abscesses can form throughout the body, especially in the brain.
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What risk factors predispose to Nocardia infection?
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Immunosuppression and cancer.
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How is Nocardiosis treated/
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Trimethoprim/sulfamethoxazole
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