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Unit Code 8310:
Fat, Feces

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Method Description

After the well-homogenized stool sample is weighed and dried,

it is rolled in Teflon and placed in a nuclear magnetic resonance

spectrometer (NMR). The NMR determines the percent of fat in

the sample. The percent is then converted to grams

fat/24 hours excretion or percent fat of random sample. Test values

for timed fecal fat collections will be reported in terms of g/24

hours; the duration of the collection may be 24, 48, 72, or 96

hours. Test values for random fecal fat collections will be reported

in terms of percent fat. (Unpublished Mayo Method)

Performing Laboratory Location

Rochester

Key