pH, Fecal
Also known as: FEC-PH
Use
The fecal pH test is used to measure the acidity or alkalinity of stool. It is a useful diagnostic tool in identifying digestive disorders, including lactose intolerance, short bowel syndrome, and infections caused by certain bacteria. Abnormal pH levels in the stool can indicate malabsorption syndromes or other gastrointestinal disorders affecting the normal absorption and digestion process.
Special Instructions
Not provided.
Limitations
This test measures the pH of stool but does not diagnose specific diseases. Variations in stool pH may occur due to factors such as diet, medications, and the presence of bacteria or viruses, leading to potential false readings. Grossly bloody specimens or those containing certain substances like barium could lead to inaccurate results. Tests performed on specimens not handled as specified may show altered pH levels due to external factors affecting the stool's chemical environment.
New York Approved
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
Stool pH
Analyte
LOINC Codes
- 2755-7 - pH Stl
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
5 g
Minimum Volume
1 g
Container
Unpreserved stool transport vial (ARUP Supply #40910)
Collection Instructions
Transfer 5 g stool to an unpreserved stool transport vial and freeze immediately.
Storage Instructions
Frozen.
Causes for Rejection
Diapers, specimens containing barium, specimens in media or preservatives, grossly bloody specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 1 hour |
| Refrigerated | 2 weeks |
| Frozen | 2 weeks |
Other tests from different labs that may be relevant