The sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic value of Pap smear and vaginal culture results were determined with Gram stain used as the ...

Smears were screened for predominant bacterial ... Pathogenic bacteria were estimated based on the results of the Gram stain (Gram positive or Gram negative) and on morphology.

Safranin is weakly water soluble and will stain bacterial cells a light red, enabling visualization of gram negative cells without interfering with the observation of the purple of the gram positive ...

Gram staining was developed in the 1800s as a quick ... staining begins by adding a crystal violet stain to a bacterial smear and then applying iodine to form a complex that fixes the crystal ...

Gram staining is a type of differential staining used to distinguish between Gram positive and Gram negative bacterial groups, based on inherent differences in their cell wall constituents.

wrote about the Gram stain and its interpretation in 1974: “It is our feeling that the Gram-stained smear should be considered part of the physical examination of the patient with an acute ...

Initial diagnosis is based on the Gram stain smear, but human interpretation of Gram-stained slide images is “labor and time intensive, and highly operator-dependent,” the authors explain. “ ...

The Gram stain method – named after its inventor – consists in treating a smear of bacteria with a violet dye, then rinsing it with iodine solution and an organic solvent. Bacteria with a ...

Known as the Gram stain, the staining technique continues ... The answer may surprise you Gram noticed that if he treated a smear of bacteria with a crystal violet dye, before rinsing it in ...