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Why must the stool sample be fresh?

April 26, 2017fresh sample stool

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Why must the stool sample be fresh?

2 Answers

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Bacteria in the stool will continue to multiply.

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Bacteria in the stool will continue to multiply. If the stool is not fresh, or in a preservative, the proportion of the different kinds of bacteria in the stool can change no longer representing the proportions present in the gastrointestinal tract. Overgrowth of normal bacteria can sometimes prevent the detection of the pathogenic bacteria as can exposing the stool sample to temperature extremes.