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HelpTest ID CL_F Chloride, Feces
Ordering Guidance
This test is only clinically valid if performed on watery specimens. In the event a formed fecal specimen is submitted, the test will not be performed.
Specimen Required
Patient Preparation: No barium, laxatives, or enemas may be used for 96 hours prior to start of, or during, collection.
Supplies: Stool containers - 24, 48, 72 Hour Kit (T291)
Container/Tube: Stool container
Specimen Volume: 10 g
Collection Instructions: Collect a very liquid stool specimen.
Useful For
Workup of cases of chronic diarrhea
Evaluation of suspected chloridorrhea
Method Name
Indirect Ion-Selective Electrode (ISE) Potentiometry
Reporting Name
Chloride, FSpecimen Type
FecalSpecimen Minimum Volume
5 g
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Fecal | Frozen (preferred) | 14 days | |
| Refrigerated | 7 days | ||
| Ambient | 48 hours |
Reference Values
An interpretive report will be provided
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82438
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| CL_F | Chloride, F | 15158-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| CL_F | Chloride, F | 15158-9 |
Day(s) Performed
Monday, Thursday