Heat fixation should be used on the following except for:
A)Gram stain
B)Capsular staining
C)Endospore staining
D)Acid Fast stain

Question

Quizplus · Accepted Answer

Capsular staining
Heat fixation will cause a bacterium's capsule to shrink, making it difficult to view once it is already stained. Therefore, heat fixation is never to be used on capsular staining. Instead, the sample is air dried and a negative stain is used for visualization. All the other choices should undergo heat fixation.

Heat Fixation Should Be Used on the Following Except For