Fecal Lactoferrin
Test Mnemonic
STLWBC
CPT Codes
- 83630 - QTY (1)
LOINC ®
40703-1
Aliases
- Fecal Lactoferrin
- Fecal Leukocytes
- Fecal WBC Non-microscopic
- Lactoferrin
- Stool Lactoferrin
- Stool WBC
Performing Laboratory
Other
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 g | Stool | Clean container | Refrigerated | Send specimen to Cleveland Clinic Microbiology Laboratory. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.1 g | Stool. Send specimen to Cleveland Clinic Microbiology Laboratory on day of collection. Recommended transport temperature is refrigerated. |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Unpreserved stool: 2 weeks; Preserved stool: unacceptable |
| Frozen | 1 month at -20 degrees Centigrade |
| Refrigerated | Unpreserved stool: 2 weeks; Preserved stool: unacceptable |
Days Performed
Mon-Fri, exclud Cleveland Clinic observed holidays
Turnaround Time
1 - 4 days
Methodology
| Name | Description |
|---|---|
| Enzyme Immunoassay (EIA) | |
| Immunochromatography |
Reference Range
Special Info
Preserved stool specimen are unacceptable.
Clinical Info
Lactoferrin is a marker for fecal leukocytes and an indicator of intestinal inflammation. Leukocytes are found in stools in the presence of infection with bacteria that invade the colonic mucosa (i.e. Salmonella, Shigella, Yersinia and invasive E. coli). Other disorders that may be associated with fecal leukocytes are ulcerative colitis, Crohns disease and antibiotic associated colitis. Fecal leukocytes are usually absent in diarrhea secondary to parasites or viruses.