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A 7-day-old culture may appear gram negative, when the organmisms are actually gram positive. Thus, S. epi would appear gram negative, and E. coli gram negative.

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What lab tests can be performed to detect the plague virus?

gram or wright stained smear, immunofluorescent stain and fatty acid, gaschromatography, cultures


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What is the medical term meaning stained blood smear is examined to determine the shape of individual red blood cells?

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Overheating the bacterial smear can result in distortion or destruction of the bacterial cells, making it difficult to observe them under the microscope. This can lead to inaccurate or inconclusive results when trying to identify the bacteria present on the smear.


What is the purpose of covering the smear with bibulous paper when performing the endospore stain?

Covering the smear with bibulous paper during the endospore stain process helps to wick away excess stain and prevent the slide from drying out. This ensures that the endospores are properly stained and the background is clear for observation under the microscope.


What would be observed in the blood smear of patient who has malaria?

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