Ordering Recommendation

Measurement of fecal fats can be useful in establishing a diagnosis of pancreatic disease. Testing requires the submission of an entire 24-hour stool collection.
For random stool collections, order Fat, Fecal Qualitative (0020385).
For testing of an aliquot from a 24-, 48-, or 72-hour stool collection, order Fat, Fecal Quantitative, Homogenized Aliquot (2002350).
For complete 48-hour stool collections, order Fat, Fecal Quantitative, 48-Hour Collection (Includes Homogenization) (2002355).
For complete 72-hour stool collections, order Fat, Fecal Quantitative, 72-Hour Collection (Includes Homogenization) (2002356).

Mnemonic
FECQFAT24
Methodology

Nuclear Magnetic Resonance Spectroscopy

Performed

Sun-Sat

Reported

2-3 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

The patient should be on a diet consisting of 50 to 150 g of fat per day for 3 days prior to the study. Non-absorbable fat substitutes, such as olestra, should be avoided prior to collection.

Collect

24-hour stool. Refrigerate during collection. Provide patient a Timed Stool Collection Kit (ARUP supply #44192) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787.

Specimen Preparation

Refer to instructions in Stool Collection-Timed Specimens (24, 48, 72 Hours) under Specimen Handling at https://www.aruplab.com. Submit entire 24-hour stool collection in an ARUP approved transport container(s) provided in kit using additional containers as needed for the full collection (available separately, ARUP supply #28077). (Min: 4 g)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

Random collections. Specimens containing barium or charcoal. Specimens in media or preservatives. Containers larger than 500 mL (500 g), such as paint cans, will be rejected and discarded.

Remarks
Stability

Ambient: 1 hour; Refrigerated: 4 days; Frozen: 2 weeks

Reference Interval

0-5 years: 0.0-2.0 g/24h
6 years and older: 0.0-6.0 g/24h

Interpretive Data



Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

82710

Components
Component Test Code* Component Chart Name LOINC
0020377 Fecal Total Weight 30078-0
0060724 Fat, Fecal Quantitative 24-Hour 16142-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Fecal fat 24 Hour
Fat, Fecal Quantitative 24-Hour Collection (Includes Homogenization)