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Fat, Fecal Quantitative 72-Hour Collection (Includes Homogenization)
Ordering Recommendation
Measurement of fecal fats can be useful for establishing a diagnosis of pancreatic disease. Testing requires the submission of an entire 72-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 24-hour stool collections, order Fat, Fecal Quantitative, 24-Hour Collection (Includes Homogenization) (2002354). For complete 48-hour stool collections, order Fat, Fecal Quantitative, 48-Hour Collection (Includes Homogenization) (2002355).
New York DOH Approval Status
Specimen Required
The patient should be on a diet consisting of 50 to 150 g of fat per day for 3 days prior to the study. Nonabsorbable fat substitutes, such as olestra, should be avoided prior to collection.
72-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.
Refer to instructions in Stool Collection-Timed Specimens (24, 48, 72 Hours) under Specimen Handling at https://www.aruplab.com. Submit entire 72-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)
Frozen.
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.
Ambient: 12 hours; Refrigerated: 4 days; Frozen: 2 weeks
Methodology
Nuclear Magnetic Resonance Spectroscopy
Performed
Sun-Sat
Reported
2-3 days
Reference Interval
0-5 years: 0.0-2.0 g/24h
6 years and older: 0.0-6.0 g/24h
Interpretive Data
Laboratory Developed Test (LDT)
Note
Hotline History
CPT Codes
82710
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0020377 | Fecal Total Weight | 30078-0 |
| 0060772 | Fat, Fecal Quantitative 72-Hour | 2271-5 |
Aliases
- Fecal fat 72 hour and homogenization
