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ID:428 Disaccharidases
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DescriptionMeasurement of the activity of small bowel mucosal disaccharidase enzymes (lactase, maltase, sucrase) from duodenal or jejunal biopsy tissue.
Indication Investigation of malabsorption due to disaccharidase deficiency
Additional InfoSample - Duodenal or jejunal biopsy. Minimum volume 5 mg. Snap freeze on dry ice. Please return dry ice box with sample to the main biochemistry lab, not the sort room.
Concurrent Testsna
Dietary Requirementsna

TubeUniversal Sterile
Tube Picture
Collection ConditionsCONTACT BIOCHEMISTRY THE DAY BEFORE CARRYING OUT THE BIOPSY. Collection tubes and dry ice will be provided by biochemistry on the day of the procedure.
Min. Vol5mg
Freq.Referred to external laboratory

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range NotesLactase 6 - 55 U/g protein Maltase 130 - 456 U/g protein Sucrase 30 - 152 Reference ranges are applicable to jejunal biopsies, assuming sample was frozen at -20 C. Duodenal samples will have lower enzyme activities.
IP Acute TAT3 weeks
IP Routine TAT3 weeks
GP Acute TAT3 weeks
GP Routine TAT3 weeks
Turnround CommentReferred to Paediatric Biochemistry at Manchester Royal Infirmary.

Originally edited by : EM. Review due on 22/10/2019 14:59:09. Published By EM on 22/10/2018 14:59:09.