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 Field Name  Data Description
Test Name  Disaccharidases
Code  Disaccharidases.
CPT Code  82657 x 4
Last Modified  4/9/2018 1:09:00 PM
Test Name  Disaccharidases.
Synonyms  stool
Patient Preparation  
Spec. Requirements  Tissue small bowel biopsy. Specimens should be frozen within 2 hours of surgery
Tube  Sterile containers or tissue cassettes
Collection Volume  9.0 mg
Storage  Frozen 80C: 90 days; freeze within 2hrs of sample collection
Routine TAT  2-8 days
Days Test Performed  Monday, Friday
Performed by BHS  None
See Availability  
Reference Lab  LabCorp of America
Reference Lab Code  823304 Disaccharidases
Clinical Use  The enzymes collectively known as the mucosal disaccharidases (lactase, maltase, palatinase, and sucrase) are present in normal small intestine and fetal colon. Depending on the disease state, different enzymes are affected. A decrease in the enzyme activity of these disaccharidases has been noted in colonic adenomas, adenocarcinomas and malabsorption. Decreased disaccharidase activity is a good indicator of mucosal injury, with the exception of lactase.
Reference Range  
Critical Value  
Testing Sample Type  Small bowel tissue
Min Lab Testing Volume  5.0 mg
Special Handling  Place (5 mg) small bowel tissue in a polypropylene screw cap collection tube and freeze within 2 hours of collection.
Lab Notes  Testing referred to Cambridge Biomedical Inc. E=#-
Methodology  ENZ - Enzymatic
Limitations  For the specimen arriving thawed, or at the incorrect temperature, the client will be notified to inquire if the specimen should be rejected or run with a disclaimer.

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