Lactoferrin, Quantitative, Stool

Message
For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.


Test Code
LACTOF


CPT Codes
83631<br>**This test is not available for New York patient testing**

Preferred Specimen
1 gram stool in sterile plastic leak-proof container


Minimum Volume
0.3 gram


Instructions
Collect undiluted feces in clean, dry, sterile leak-proof container. Do not add fixative or preservative.
⁠⁠⁠⁠⁠⁠⁠Patients may collect stool and hold at room temperature until it can be properly refrigerated or frozen, but no more than 14 days.


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: See Collection Instructions
Refrigerated: 14 days
Frozen: 21 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimen collected in formalin • MF • SAF • PVA • Cary-Blair media


Methodology
Immunoassay (IA)

Setup Schedule
Set up: Tues, Thurs, Sat; Report available: 2-4 days


Limitations
False-positive results are observed in breast-fed infants.


Reference Range
<7.25 mcg/mL


Clinical Significance
The lactoferrin IBD-scan is a quantitative enzyme linked immunosorbent assay for measuring concentrations of fecal lactoferrin, a marker for leukocytes. An elevated level is an indicator of intestinal inflammation. The test can be used as an in vitro diagnostic aid to distinguish patients with active Inflammatory Bowel Disease (IBD) from those with non-inflammatory irritable bowel syndrome (IBS).


Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130


Last Updated: November 24, 2021


The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.