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|Collection Instructions||Do not place tissue on gauze or filter paper; do not add saline or allow contact with support, preservatives or embedding material.
Transport immediately to laboratory.
|Container type||Small bowel biopsy|
|Amount to Collect||5 mg|
|Sample type||Small bowel biopsy|
|Preferred volume||5 mg|
|Min. Volume||2 mg|
|UCSF Rejection Criteria||Sample submitted improperly. Delivered to laboratory > 30 minutes after collection|
|Processing notes||Specimen must be kept frozen and stored at -70C. Do not thaw. Deliver to China Basin on dry ice.|
|Units||µM glucose generated/min/ g protein|
|Synonyms||Lactase deficiency; palatinase deficiency; sucrase deficiency; maltase deficiency|
|Additional information||Lactase, maltase, palatinase and sucrase are mucosal disaccharidases that are present in normal small intestine and fetal colon. A decrease in the enzyme activity of these disaccharidases has been noted in colonic adenomas, adenocarcinomas and malabsorption. Decreased disaccharidase activity is a good indication of mucosal injury with the exception of lactase.|
|CPT coding||84311-90 x4|
|Last Updated||11/5/2012 12:53:09 PM|