Upon observing a section stained with the Kinyoun AFB method, you notice that the counterstain methylene blue has covered or masked the organism being demonstrated you should:

The most commonly used phenolic compound for reducing adsorbed silver to a visible metallic state in argyrophilic procedures, such as the Warthin Starry, is:

From the following, what is the most likely cause of an AFB stained control that gives a negative result?

In order for the Gram stain to work properly, it is important to treat the tissue with a mordant:

The control section containing both gram-positive and gram negative organisms shows only gram positive organisms when stained with the Brown & Hopps technique. This is most likely the result of:

Acid-fast organisms are seen on a section of lung tissue. The organisms appear to lie out of focus on the surface of the section. This is most likely the result of:

Upon microscopic examination of gram positive tissue, you noticed that the organism has stained weakly and you also notice traces of mercury pigment. This is most likely the cause of:

Organisms found on the gastric mucosa of the stomach presumptively the cause of gastritis which are which of the following microorganisms and will be demonstrated with a silver technique:

After you have performed the Fite's AFB technique for leprosy organisms, you notice that significant shrinkage of the tissue has occurred. This is most likely the cause of:

The slides exhibit a blackish precipitate after performing a steiner procedure for spirochetes. This is most likely the cause of:

What color do the microorganisms fluoresce when treated with the Auramine O Rhodamine B reagent?

The property of acid-fastness appears to be related to the presence of this substance within the organisms or within the cell walls of organism:

Spirochetes are filamentous bacteria and are known to be:

The pathologist has ordered a Giemsa stain to differentiate a specific bacterium but upon microscopic examination, the pathologist notes that the Giemsa technique did not work properly. What should the histologist do?

For the Brown-Hopps stain for bacteria, the second differentiator is:

From the following procedures, which will be best to identify helicobacter pylori?

The bacterium Legionella pneumophilia can be demonstrated using this staining method:

The color result for the Kinyoun AFB technique is bacteria are _____ and the background is _____.

The purpose of iodine in Gram techniques for staining bacteria is to:

The choice of a decolorizer for the Ziehl-Neelson stain for AFB is:

The tissue section has been over-developed using the Warthin Starry technique for spirochetes, how can you best correct the problem?

Acid-fast techniques act on the condition in which the organism has:

The recommended fixative for tissue suspected of containing spirochetes:

Insoluble compounds - meaning a layer of crust to form on top of the tissue that will cause the technique to fail - are noted on a microscopic evaluation of a control section stained with the brown & hopps gram stain. The presence of these compounds are probably due to: