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Test ID DSAC Disaccharidase Activity Panel, Tissue

Shipping Instructions

Freeze immediately after collection and ship frozen.

Specimen Required

Specimen Type: Tissue

Source: Intestinal biopsy

Container/Tube: Clean, screw-topped plastic vial

Specimen Volume: 5 mg

Collection Instructions: Specimen should not be placed on gauze or filter paper, nor should any saline, support or embedding material be added.

Useful For

Evaluation of patients who present with signs or symptoms suggestive of disaccharidase disorders

This test is not intended for carrier detection.

Method Name


Reporting Name

Disaccharidase Activity Panel, Ts

Specimen Type


Specimen Minimum Volume

See Specimen Required

Specimen Stability Information

Specimen Type Temperature Time Special Container
Tissue Frozen 28 days OTHER

Reference Values

Lactase: ≥14.0 nmol/min/mg protein

Sucrase: ≥19.0 nmol/min/mg protein

Maltase: ≥70.0 nmol/min/mg protein

Palatinase: ≥6.0 nmol/min/mg protein

Glucoamylase: ≥8.0 nmol/min/mg protein

Day(s) Performed

Monday through Friday

Report Available

3 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
DSAC Disaccharidase Activity Panel, Ts 57765-0


Result ID Test Result Name Result LOINC Value
608237 Lactase 81315-4
608238 Sucrase 30372-7
608239 Maltase 30315-6
608240 Palatinase 81314-7
608241 Glucoamylase 81322-0
608242 Interpretation 57779-1
608243 Reviewed By 18771-6