Fecal Fat, Qualitative, Random Stool

Alphabetical Test listing

Fecal Fat, Qualitative, Random Stool-13687

Test name:

Test number:

13687

Excellian order number:

LAB13687

Abbreviation:

RFF

Alternate names:

Fatty acid, stool
Fecal fat stain
Fecal lipids
Neutral fat - stool
Qualitative fat
Stool fat

Useful for:

Detect the presence of fecal fatty acids and neutral fat.

Specimen type:

Stool, random

Collection container:

Sterile cup w/ yellow cap - 90mL (LabCorp)

Volume:

3 g

Minimum volume:

0.5 g
(Note: This volume does not allow for repeat testing.)

Transport container:

Sterile cup w/ yellow cap - 90mL (LabCorp)

Alternate collection container:

Sterile vial/container

Alternate transport container:

Sterile vial/container

Transport and stability:

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x3

Reason for rejection:

Specimen contaminated with urine and/or water
Specimen on outside of container
Specimen containing interfering substances (eg; castor oil, bismuth, Metamucil^®, barium)

Performing lab:

LabCorp Burlington (001677): R-NX

TAT:

2 - 6 days

Method:

Microscopic examination following staining with Oil Red O

Reference ranges:

Fats, neutral: Normal (<60 droplets/HPF)

Fats, total: Normal (<100 droplets/HPF)

Clinical information:

Increases in neutral fat are commonly associated with pancreatic exocrine insufficiency. Increase in stool total fats (neutral fats, soaps, and fatty acids) is likely to be associated with small bowel disease.

CPT codes:

82705

LOINC code:

Result 12598-9

Date created:

06/03/2019

Revised date:

08/16/2023

Review date:

08/16/2023