Osmolality Stool, 72 hour (OSMO ST 72)
|
| Synonyms:
| None listed |
| Specimen: | Stool; 72 hour loose stool collection.
The metal container used for this collection is available from AnMed Health Laboratory Services. |
| Volume: | Dependent on consistancy of specimen, 5 mL supernatant needed |
| Minimum Volume: | 1 mL |
| Collection: | Transport the 72 hour collection to the laboratory as soon as possible after collection ends.
Maintain at room temperature. |
| Rejection Criteria: | Formed stool; improper labeling. |
| Reference Range: | None |
| Methodology: | Fiske Osmometer |
| Test Use: | Distinction of osmotic from nonosmotic secretory diarrhea. A large deficit (>50M OSM/Kg) in the calculated osmolabity (twice the sum of the stoool for sodium and stool for potassium) from the measured stool osmolality indicates osmotis diarrhea. |
| Additional Information: | No Additional Information Listed |
| Testing Includes: | |
| Testing Facility: | AnMed Laboratory |