A sputum Gram stain is a laboratory test that uses a series of stains to check for bacteria in a sputum sample. Sputum is the mucous material that comes up from your air passages when you cough very deeply.
The Gram stain method is one of the most commonly used techniques for the rapid diagnosis of bacterial infections, including bacterial pneumonia.
Gram stain of sputum
A sputum sample is needed. You will be asked to...Read more
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