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Test Code:
090-10-0900

Order Name:
Stool Fat Staining (Semi-quantitative)

 
Useful For:
Diagnosing fat malabsorption due to pancreatic or intestinal disorders. Monitoring effectiveness of enzyme supplementation in certain malabsorption disorders.
 
Methodology:
Microscopic examination
 
AliasesName:
Fat, Feces
Random Fecal Fat
Fecal Fat, Quantitative
Fecal Fat, Random Lipids
 
 
 
Test Code:
090-10-0900

Order Name:
Stool Fat Staining (Semi-quantitative)

 
Patient Preparation:
  1.  For 3 days prior to and during the collection period: a. Patient should be on a fat-controlled diet (100-150 g fat per day). b. No laxatives (particularly mineral oil and castor oil). c. No synthetic fat substitutes (eg, Olestra) or fat-blocking nutritional supplements.
  2. The use of diaper rash ointments will falsely elevate test results. Discontinue use during collection period.
  3. Barium interferes with test procedure; a waiting period of 48 hours before stool collection analysis is recommended.
 
Collection Specimen Or Container:
Stool/ Stool container
 
Specimen Testing Type:
Portion of stool
 
Sub Mission Container:
Stool container
 
Specimen Stabillity:
Specimen Type Temperature Time
Stool examination Room temperature, 18oC to 25oC 24 hours
 
 
 
Test Code:
090-10-0900

Order Name:
Stool Fat Staining (Semi-quantitative)

 
Method detail:
Microscopic examination
 
Schedule:
Tested Daily (24 hours)
 
Turnaround Time:
Received specimen to Reported within 1 hours
 
Performing Location:
Hematology, Laboratory Department Tel. 17254
 
Specimen Retention Time:
1 day
 
 
 
Test Code:
090-10-0900

Order Name:
Stool Fat Staining (Semi-quantitative)

 
 
Clinical Information:
Total fecal lipids include glycerides, phospholipids, glycolipids, soaps, sterols, cholesteryl esters, and sphingolipids. Excess fecal fat in stool, (steatorrhea) is indicative of malabsorption disorders, such as pancreatic insufficiency or Whipple disease. Therefore, measurement of the fecal fats can be useful in establishing a diagnosis of such pancreatic diseases as cystic fibrosis, chronic pancreatitis, neoplasia, or stone obstruction, and such intestinal diseases as Whipple disease, regional enteritis, tuberculous enteritis, gluten-induced enteropathy (also called celiac disease or sprue), and the atrophy of malnutrition.

Distinguishing free fatty acids from neutral fats, once thought to be helpful in the differential diagnosis of pancreatic disease, has fallen out of favor. Note that the composition of fats in the stool, normally predominately free fatty acids, can change significantly to predominately neutral fatty acids when the patient is on orlistat. This test does not distinguish between free and neutral fatty acids.
 
Reference Value:
Fecal Fat Droplet Total Size Number Product ≤ 200 = No Steatorrhea
 
Clinical Reference:
http://www.mayomedicallaboratories.com (Retrieved: 22 Jan 2019)