Test Overview
Test Methodology

Nuclear Magnetic Resonance Spectrometer (NMR)

Test Usage

For evaluation of persons with intestinal malabsorption; investigation of suspected laxative abuse.

Reference Range *

2 - 7 g/24 hrs

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Saturday
Analytic Time

1 - 4 days

Soft Order Code
FATF
MiChart Code
Fecal Fat, Quantitative
Synonyms
  • Fecal Fat, Quantitative
  • Lipids, Stool, Quantitative
  • Steatorrhea
  • Stool, Fat, Quantitative
  • LIPIDS TOTAL FECES
  • %FAT
  • FECAL FA
  • FECES FAT
  • SOLIDS
  • WEIGHT
  • PERCENT FAT
  • FECAL FAT
  • FAT, FECAL
  • TOTAL SOLIDS
  • FECAL FAT WEIGHT
Laboratory
Sendout
Reference Laboratory
Mayo FATF (8310)
Section
Special Testing
Specimen Requirements
Collection Instructions

Obtain plastic collection cans from MLabs; all other containers, including paint cans, are unacceptable. Collect stool for a duration of 24, 48, or 72 hours (48 - 72 hour collection preferred); freeze and send entire collection. Continue collection until a minimum of 5 grams of stool are collected. Note collection duration, start date and time and end date and time on requisition. It is essential that laxatives, particularly mineral oil or castor oil, are not used during the collection period. Barium interferes with the assay. Synthetic fat substitutes such as Olestra interfere with the assay.

Normal Volume
Entire 24 - 72 hour stool collection
Minimum Volume
Entire 24 - 72 hour stool collection
Additional Information

Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82710
Fee Code
22177
LOINC
Z256-8
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