Ziehl-Neelsen stain
Pronunciation: zēl nāl′sen
Definition: a method for staining acid-fast bacteria using Ziehl stain, decolorizing in acid alcohol, and counterstaining with methylene blue; acid-fast organisms appear red, other tissue elements light blue; a modification of this stain is also used for Actinomycetes and Brucella.
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Examples: glitazone, GI cocktail, etc.
