Study for the CAMLPR Histology Practice Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

In Gomori Methenamine Silver staining, if fungal elements appear red, which adjustment should be made?

In Gomori methenamine silver staining, the oxidation step creates aldehyde groups in the tissue that drive silver deposition onto fungal cell walls. If this oxidation is allowed to run too long, too many aldehyde sites can form, which changes how silver is reduced and can shift the color of the fungal elements toward red instead of the desired black. By decreasing the oxidation time, you limit excessive aldehyde formation, improving selective silver deposition on the fungi and restoring the characteristic black staining of fungal walls against a pale background.

In Gomori methenamine silver staining, the oxidation step creates aldehyde groups in the tissue that drive silver deposition onto fungal cell walls. If this oxidation is allowed to run too long, too many aldehyde sites can form, which changes how silver is reduced and can shift the color of the fungal elements toward red instead of the desired black. By decreasing the oxidation time, you limit excessive aldehyde formation, improving selective silver deposition on the fungi and restoring the characteristic black staining of fungal walls against a pale background.