Stool for Reducing Substances (RED SUB ST)
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| Synonyms:
| None listed |
| Specimen: | Stool: 5 grams or 5 mL fresh specimen in a clean leak-proof container.
Preserved specimens are unacceptable. |
| Volume: | 5 gm or 5 mL |
| Minimum Volume: | 1 gm or 1 mL |
| Collection: | Transport to the laboratory within 2 hours of collection if kept at room temperature. Freeze specimen as soon as possible after collection..
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| Rejection Criteria: | Preserved stool, improper label, diapers, stool containing barium. |
| Reference Range: | Negative (<0.25%) |
| Methodology: | Semi-quantitative colorimetry |
| Test Use: | Detect deficiency of enzymes (disaccharidases) due to congenital deficiency or mucosal injury. |
| Additional Information: | Test results will change over time. Freezing recommended if delay >2 hours before analysis. |
| Testing Includes: | |
| Testing Facility: | ARUP |