ARUP's Laboratory Test Directory

Disaccharidase, Tissue : 2002247

Mnemonic: DISAC

Methodology: Spectrophotometry
Performed: Mon, Wed, Fri
Reported: 1-5 days
Specimen Required: Collect: 2 biopsies of approximately 5 mg of small bowel should be collected by endoscopy.

Storage/Transport Temperature: Tissue should be placed on the wall of a small, tightly-capped plastic tube without any supporting media. Recommend the
use of a 1 mL flat-bottom microtube. Freeze within 2 hours of collection. Keep frozen for shipping on dry ice.


Unacceptable Conditions: Ambient or refrigerated specimens; specimens placed on gauze, filter paper, or any other type of support media. Tissue preserved in formalin.

Stability (collection to initiation of testing): Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen (-70°C): 6 months
Reference Interval:
Component Reference Interval
Lactase Greater than or equal to 15.0 µmol/min/g protein
Maltase Greater than or equal to 100.0 µmol/min/g protein
Palatinase Greater than or equal to 5.0 µmol/min/g protein
Sucrase Greater than or equal to 25.0 µmol/min/g protein

Interpretive Data:

Please refer to Statement B in the Compliance Statements section in the front of the Laboratory Test Directory.
CPT Code(s): 84311 x4
 
 

 

 

 
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