ARUP's Laboratory Test Directory

Disaccharidase, Tissue : 2002247

Mnemonic: DISAC

Methodology: Quantitative Spectrophotometry
Performed: Mon, Wed, Fri
Reported: 1-5 days
Specimen Required: Collect: Biopsies of small bowel by endoscopy.

Specimen Preparation: Place two 5 mg biopsies of tissue on the wall of a small, tightly-capped plastic tube without any supporting media. A 1 mL flat-bottom microtube is recommended. Freeze within 2 hours of collection.

Storage/Transport Temperature: Frozen. Ship on dry ice.

Unacceptable Conditions: Room temperature 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: 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:

See Compliance Statement B: www.aruplab.com/CS
CPT Code(s): 82657 X4