72 Hour Fecal Fat: Reference Range

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72 Hour Fecal Fat Test measures the fat level in the stool, to diagnose malabsorption. In order to get tested, you may consume 50 to 150 grams of fat a day for 2-3 days before and during the stool sample collection.

Reference Range:

A healthy person’s stool should contain 2 to 7 grams over 24 hours, and 6 to 21 grams over 72 hours in such conditions.

What Does the Result Mean?

Positive: A positive result indicates that the fat may not be well absorbed; you may have malabsorption.

Negative: Normally, the result should be negative. But a negative result does not ensure the absence of malabsorption. A follow-up quantitative test may be needed.


Keywords: 72 Hour Fecal Fat, Fat Stain Oil Red O, Fat Fecal Qualitative or Quantitative, Fat Feces, Fecal Fat, Qualitative or Quantitative Stool Fat, Stool Lipids

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