How Can Nocardia Spp. Be Presumptively Identified

question 34

Multiple Choice

How can Nocardia spp. be presumptively identified?

• A) Strong staining with Gram stain and the presence of filamentous, branching organisms
• B) Medusa head colonies with filamentous, branching organisms present on acid-fast stain
• C) Sulfur granules that when crushed and Gram stained reveal filamentous, branching organisms
• D) Filamentous, branching organisms with a carbolfuchsin acid-fast stain with a weak acid decolorizer, but not a Kinyoun acid-fast stain

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