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7 Cards in this Set

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