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Gram stain of tissue biopsy

Gram stain of tissue biopsy

Overview

The gram stain procedure is a method of staining microorganisms on a slide using crystal violet to be viewed later under a microscope.

Review Date 10/27/2024

Updated by: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.