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Gram Stain

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Also known as: Gram's Stain
Formal name: Gram Stain

At a Glance

Why Get Tested?

To detect the presence and identify the general type of bacteria or sometimes fungi (microorganisms) in a sample taken from the site of a suspected infection; to generally classify bacteria grown in culture so that further identification tests can be performed and appropriate treatment given

When to Get Tested?

When your health care provider suspects that you have a bacterial (or sometimes fungal) infection; often whenever a culture is requested

Sample Required?

Pus, body fluid, sputum, or swab of cells taken from the site of an infection; a sample of bacteria or fungi grown and isolated in culture

Test Preparation Needed?