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Test Code Billings Clinic: 3913 Mayo: DSAC Disaccharidase Activity Panel, Tissue

Reporting Name

Disaccharidase Activity Panel, Ts

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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

Spectrophotometry


Shipping Instructions


Freeze immediately after collection and ship frozen.



Specimen Required


Specimen Type: Tissue

Source: Intestinal biopsy

Supplies: 15 mL Tissue Tube-DSAC (T993)

Container/Tube: 15 mL tissue tube

Specimen Volume: 5 mg

Collection Instructions:

1. Place specimen in tissue tube.

2. Specimen should not be placed on gauze, filter paper, or swabs/wooden sticks and should not have any saline, water, support, or embedding material added.


Specimen Type

Tissue

Specimen Minimum Volume

See Specimen Required

Specimen Stability Information

Specimen Type Temperature Time Special Container
Tissue Frozen 28 days OTHER

Reject Due To

Specimens sent in formaldehyde, saline, or any supportive media
Specimens placed on gauze, filter paper, foil, or swabs/wooden sticks		 Reject

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

Interpretation

Quantitative values of lactase, sucrase, maltase, palatinase, and glucoamylase are reported. Clinical interpretation of results is provided.

Day(s) Performed

Monday through Friday

Report Available

3 to 4 days

Test Classification

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

CPT Code Information

82657

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

Forms

If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

Biochemical Genetics Patient Information (T602)

Gastroenterology and Hepatology Test Request (T728)