Home
HelpTest ID NBLD0192 Reducing Substance, Feces
Useful For
Assisting in the differentiation between osmotic and nonosmotic diarrhea
Screening test for:
-Diarrhea from disaccharidase deficiencies, (eg, lactase deficiency)
-Monosaccharide malabsorption
Specimen Type
FecalSpecimen Required
Supplies: Stool container, Small (Random), 4 oz Random (T288)
Container/Tube: Fecal container
Specimen Volume: 3 g
Collection Instructions:
1. Collect a loose, unpreserved, random fecal specimen.
2. Freeze immediately.
Additional Information: If additional tests are ordered, aliquot and separate sample prior to freezing to allow 1 container per test.
Reject Due To
| Urine and feces mixed Feces collected in any preservative or fixative |
Reject |
Specimen Minimum Volume
2 g
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Fecal | Frozen | 7 days |
Day(s) Performed
Monday through Saturday
Report Available
1 to 3 daysMethod Name
Benedict's Copper Reduction Reaction
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84376
Reporting Name
Reducing Substance, FReference Values
Negative or trace
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.Forms
If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request (T728) with the specimen.
Secondary ID
607696SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 20289 | Reducing Substance, F |