Test Directory

Test Code
LACQL
Test Name
Lactoferrin, Qualitative, Stool
CPT Codes
83630
Expected Turnaround Time
2 - 3 days
Clinical Utility

Lactoferrin is a marker for fecal leukocytes and a positive result is an indicator of intestinal inflammation. This elevation may be caused by acute infectious colitis or active inflammatory bowel disease (IBD).

Specimen and Container Info

Specimen Type: Stool

Collection Container: Sterile Container (Preservative Free)

Desired Specimen Volume: 1 g

Collection Instructions
  1. Collect stool in a sterile container (preservative free).
  2. Do not add fixative or preservative.
Processing and Submission Instructions
  1. Transport 1 g of stool in the original collection container.
  2. Once specimen has been frozen, do not thaw.
Transport Instructions

Transport to the laboratory frozen.

Stability Requirements

Room Temperature

48 hours

Refrigerated

14 days

Frozen

21 days

Causes for Rejection
  • Specimen received in transport media
Methodology
Immunoassay
Reference Intervals

See patient report.

Limitations

The test may not be appropriate in immunocompromised persons. This test is not FDA cleared for patients with a history of HIV and/or hepatitis B and C, patients with a history of infectious diarrhea (within 6 months), and patients having had a colostomy and/or ileostomy within 1 month.


Reference Lab
Quest Diagnostics Nichols Institute
Testing Schedule
Routine, 3 times per week