Gram Stain
Current as of: March 28, 2019
Author: Healthwise Staff
Medical Review:Kathleen Romito, MD – Family Medicine & Adam Husney, MD – Family Medicine & E. Gregory Thompson, MD – Internal Medicine & Martin J. Gabica, MD – Family Medicine
A Gram stain is a type of test that helps tell whether bacteria causing an infection are Gram-positive or Gram-negative. This can help a doctor choose the best treatment for an infection. The Gram stain is done by putting a special dye on the bacterial cells. Gram-positive bacteria retain the dye and turn a different…