GRAM STAINING PROTOCOL

GRAM STAINING: Gram staining works by differentiating bacteria by the chemical and physical properties of their cell walls. However, not all forms of bacteria can be tested using the Gram stain method, and Gram stains don't usually provide a diagnosis alone. Instead, they help to broadly determine the type of bacteria.  

What do the results of a Gram stain mean?

Gram stain test results reveal one of two categories: a negative Gram stain or a positive Gram stain. This is not to be confused with gram-negative bacteria or gram-positive bacteria.

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