Fecal Fat, Quantitative
Test Mnemonic
FECFAT
CPT Codes
- 82710 - QTY (1)
Includes
- Fecal Fat Quantitative
- Collection Duration
- Total Weight
Performing Laboratory
Mayo Clinic Dpt of Lab Med & Pathology
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| Entire collection | Stool | Mayo Stool collection container | Refrigerate during collection. | Frozen | Call Client Services at 216-444-5755 or 800-628-6816 for collection container. Submit ENTIRE COLLECTION of stool from 48 or 72 hour collection. This test may NOT be added onto another stool test. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| Entire collection | Stool | Mayo Stool collection container | Refrigerate during collection. | Frozen | Call Client Services at 216-444-5755 or 800-628-6816 for collection container. Submit ENTIRE COLLECTION of stool from 24 hour stool collection. This test may NOT be added onto another stool test. |
| 5 g | Stool | Mayo Stool collection container | Refrigerate during collection. | Frozen | Random collection in Mayo stool collection container. Call Client Services at 216-444-5755 or 800-628-6816 for collection container. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 g |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Unacceptable |
| Refrigerated | 180 days |
| Frozen | 180 days |
Days Performed
Mon - Fri
Turnaround Time
3 - 6 days
Methodology
| Name | Description |
|---|---|
| Nuclear Magnetic Resonance Spectroscopy |
Special Info
Length of collection period is required for testing. Label all collection containers X of X; e.g. 1 of 2, 2 of 2, and send all containers. Barium interferes with test procedure; a waiting period of 48 hours before stool collection is recommended. For 3 days prior to and during the collection period: 1. Patients should be on a fat-controlled diet (100-150 g fat/day), 2. No laxatives (particularly mineral oil and castor oil), 3. No synthetic fat stubstitutes (e.g. Olestra) or fat-blocking nutritional supplements. The use of diaper rash ointments will falsely elevate test results. Discontinue use during collection period.
Clinical Info
Useful for diagnosing fat malabsorption due to pancreatic or intestinal disorders. CAUTION: Do not use for differentiating among pancreatic diseases.