Lactoferrin, Qualitative, Stool

Test Code

CPT Codes

Preferred Specimen
1 gram undiluted stool collected in a sterile, dry leak-proof container

Minimum Volume
0.3 grams

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 frozen. The time held at room temperature must not exceed 48 hours from time of collection.

Specimens can be delivered to Patient Service Center (PSC) or Physician's office for freezing and delivery to the laboratory. Once specimen has been frozen, do not thaw.

Transport Temperature

Specimen Stability
Room temperature: Unacceptable
Refrigerated: 14 days
Frozen: 21 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimen received in transport media

Immunoassay (IA)

Setup Schedule
Set up: Tues, Thurs, Sat; Report available: Next day

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

Reference Range

Clinical Significance
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). The test may not be appropriate in immunocompromised persons. In addition, 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.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Dr
Chantilly, VA 20153

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.