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Disaccharidase in Tissue
Ordering Recommendation
Evaluate carbohydrate malabsorption due to disaccharidase deficiency.
New York DOH Approval Status
Specimen Required
Two 5 mg biopsies of small bowel tissue. Use DISACT (Disaccharidase) Tissue collection kit (ARUP Supply #64011) available online through eSupply using ARUP Connect™ or contact Client Services at 800-522-2787.
Use DISACT (Disaccharidase) Tissue collection kit (ARUP Supply #64011) available online through eSupply using ARUP Connect(TM) or contact Client Services at (800) 522-2787.
Place one biopsy on wall of each collection tube without any supporting media and freeze within 2 hours of collection. (Min: two 5 mg biopsies).
Frozen. Ship on dry ice.
Specimens placed on gauze, filter paper, or any other type of support media. Specimens preserved in formalin or in liquid.
Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 6 months
Methodology
Quantitative Spectrophotometry
Performed
Mon, Wed, Fri
Reported
1-6 days
Reference Interval
| Component | Reference Interval |
|---|---|
| Lactase | Greater than or equal to 10.0 µmol/min/g protein |
| Maltase | Greater than or equal to 100.0 µmol/min/g protein |
| Palatinase | Greater than or equal to 9.0 µmol/min/g protein |
| Sucrase | Greater than or equal to 25.0 µmol/min/g protein |
Interpretive Data
Laboratory Developed Test (LDT)
Note
Hotline History
Hotline History
CPT Codes
82657
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 2002249 | Sucrase | 14178-8 |
| 2002251 | Lactase | 1942-2 |
| 2002253 | Palatinase | 14168-9 |
| 2002255 | Maltase | 29640-0 |
| 2002487 | Disaccharidase Interpretation | 57779-1 |
Aliases
- Isomaltase
- Lactase
- Maltase
- Palatinase
- Sucrase
