Fecal Fat Stool Test
Fecal Fat Stool Test (Labcorp)
The Fecal Fat Stool Test is used to measure the amount of fat (lipids) in a person's stool sample. This test can help determine if a person's body is not properly absorbing dietary fat. Excess fat in the stool can be indicative of a digestive disorder or malabsorption. Malabsorption can be caused by a number of conditions such as infections in the intestines, pancreatic cancer, celiac disease, Crohn's Disease, Cystic Fibrosis, blockage of the bile duct and gallbladder cancer.
This test is usually ordered when a person has symptoms such as chronic diarrhea or loose, fatty stools. A Fecal Fat Test may be ordered with other stool tests such as an Ova and Parasite or Occult Blood Test. Follow up blood tests such as a CBC, CMP, or Celiac Disease Test may be necessary to help a person's doctor make a diagnosis.
Turnaround time for this test is typically 3-8 business days.
Where can I find a Fecal Fat test near me?
Check our lab finder to locate a collection site in your area.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
This test requires a 72-hour specimen. A standard diet containing 50 to 150 g of fat per day for at least three days before the test is started and during the 72-hour collection is recommended. Avoid using mineral oil as a laxative.
Go to the draw site to obtain a specimen container and collection instructions. Keep the specimen refrigerated during the collection period.
If this test is being ordered along with any other blood and/or urine medical testing, it is recommended you have the specimen(s) for your other tests collected at the same time you bring the stool specimen to the draw site.