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FECAL FAT QUANTITATIVE

Mnemonic

FE FAT QNT

Specimen Collection Requirements

Patient Preparation

For 3 days prior to and during the collection period: Patient should be a on fat-controlled diet (100-150 g fat per day). No laxatives, particularly mineral oil and castor oil. No synthetic fat substitutes (eg, Olestra) or fat blocking nutritional supplements. Barium interferes with test procedure; a waiting period of 48 hours before stool collection analysis is recommended. The use of diaper rash ointments will falsely elevate test results. Discontinue during collection period.

Collect

Stool, 72-hour stool collection; 48- and 24-hour stool collections are also acceptable. Refrigerate during collection.
Please see Stool Collection Information Sheet and correct container example.

Handling

Entire stool collection, frozen. Indicate time of collection. Pre-weighed container provided by Legacy Laboratory Services.

Preferred Volume

20 gm

Minimum Volume

5 gm

Transport

Frozen

Rejection Criteria

Patient not following the patient preparation guidelines, specimens containing media or preservative, containers larger than 500 mL (500 g), specimens not collected in approved containers

Stability

Ambient: Unacceptable; Refrigerated: 180 days; Frozen: 180 days

Testing Information

Note

A separate collection should take place if other stool tests are ordered.

Performed

Mon - Fri

Reported

2-5 days

Method

Nuclear Magnetic Resonance (NMR) Spectroscopy

Referral Lab

Mayo Medical Laboratories (FATF)

Reference Values

Reference Values

Interpretation provided.

CPT Codes

82710

Last Updated: Wednesday, September 27, 2017 04:22:41 PM


Client Services: 503-413-1234