FECAL FAT QUANTITATIVE
General Information
HLAB/HOL Code: FATF
UPHSM LIS Test #: 6971
Schedule:
Testing Time:
Testing Lab: Labcorp
UPHSM LIS Test #: 6971
Schedule:
Testing Time:
Testing Lab: Labcorp
Specimen Info
Only 1 specimen type required, unless otherwise specified
Volume: 5-25 mL
Temperature: Frozen
Tube Type: Stool (72HR collection)
Collection Info:
Volume: Entire collection or 5 to 25 mL of a homogenized aliquot
Container: One or more clean LabCorp-approved stool collection kits containing a 1-gallon can, absorbent sheet, Armlock O-ring, and a leakproof plastic bag
Collection: Collect stool directly into can. Do not fill any can more than 2/3 full. Secure lid with pressure and firmly attach the O-ring. State collection time on the can label. Place the can and the absorbent sheet into the leakproof plastic bag and seal. Send the entire can, or if submitting aliquot, follow this procedure: 1. Weigh specimen and collection container and subtract the weight of an empty container of same type (one-gallon can weight with lid: 360 g metal or 320 g plastic container). This is the “net weight” to be recorded on the test request form. 2. Open the container and observe whether the contents are liquid. If liquid stool, secure the lid, mix, and submit an aliquot of the total collection. If solid stool, add deionized water (approximately 500 mL) to the specimen container and mix thoroughly to create a homogenous specimen. Submit a 5 to 25 mL aliquot of the total collection in an empty stool transport vial or screw-cap urine bottle, sterile no additives. 3. Record on both the container and the test request form the amount of water added to liquefy the stool or if no water was required.
Temperature: Frozen
Tube Type: Stool (72HR collection)
Collection Info:
Volume: Entire collection or 5 to 25 mL of a homogenized aliquot
Container: One or more clean LabCorp-approved stool collection kits containing a 1-gallon can, absorbent sheet, Armlock O-ring, and a leakproof plastic bag
Collection: Collect stool directly into can. Do not fill any can more than 2/3 full. Secure lid with pressure and firmly attach the O-ring. State collection time on the can label. Place the can and the absorbent sheet into the leakproof plastic bag and seal. Send the entire can, or if submitting aliquot, follow this procedure: 1. Weigh specimen and collection container and subtract the weight of an empty container of same type (one-gallon can weight with lid: 360 g metal or 320 g plastic container). This is the “net weight” to be recorded on the test request form. 2. Open the container and observe whether the contents are liquid. If liquid stool, secure the lid, mix, and submit an aliquot of the total collection. If solid stool, add deionized water (approximately 500 mL) to the specimen container and mix thoroughly to create a homogenous specimen. Submit a 5 to 25 mL aliquot of the total collection in an empty stool transport vial or screw-cap urine bottle, sterile no additives. 3. Record on both the container and the test request form the amount of water added to liquefy the stool or if no water was required.
Specimen Acceptability
STABILITY REQUIREMENTS:
Frozen - stable 14 days
Refrigerated - stable 14 days
Frozen - stable 14 days
Refrigerated - stable 14 days
Methods
Extraction/spectrophotometry
Clinical Utilities
In malabsorption syndromes, notably pancreatic insufficiency and Whipple disease, steatorrhea is a prominent feature. Fecal fats can be useful in diagnosis of cystic fibrosis, chronic pancreatitis, neoplasia, or stone obstruction. Also useful in regional enteritis, celiac disease, sprue, and the atrophy of malnutrition.
Limitations: C8 and C10 saturated fatty acids are not quantitated with this method.
Limitations: C8 and C10 saturated fatty acids are not quantitated with this method.
CPT Codes
82710
* The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding
is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
Reference Range
• 0-18 years: 0.0-3.1 g/24 hours
• >18 years: 0.0-7.1 g/24 hours
• >18 years: 0.0-7.1 g/24 hours
