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Gram stain of tissue biopsy

Gram stain of tissue biopsy


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 11/24/2014

Updated by: Daniel Levy, MD, PhD, Infectious Diseases, Lutherville Personal Physicians, Lutherville, MD. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.