Lab Dept:

Anatomic Pathology

Test Name:

DISACCHARIDASE ANALYSIS ON GI BIOPSIES

General Information

Lab Order Codes:

DSAC

Synonyms:

N/A

CPT Codes:

82657 x3 – Enzyme activity in blood cells, cultured cells, or tissue, not elsewhere specified; nonradioactive substrate, each specimen

Test Includes:

Dissacharidase (includes lactase, sucrase, maltase & palatinase) levels reported in uM/min/gram protein.

Logistics

Test Indications:

N/A

Lab Testing Section:

Anatomic Pathology - Sendouts

Referred to:

Mayo Medical Laboratories, MML Test: 91414/FDSAC (forward to Joli Diagnostics, Inc.)

Phone Numbers:

MIN Lab: 612-813-6711

STP Lab: 651-220-6560

Test Availability:

Daily, 24 hours

Turnaround Time:

1 week

Special Instructions:

N/A

Specimen

Specimen Type:

Intestinal biopsy

Container:

Small, tightly capped, plastic tube

Draw Volume:

5 mg of intestinal biopsy specimen

Processed Volume:

Same Draw Volume

Collection:

Collect fresh tissue. Do not place tissue on gauze or filter paper, nor should any saline, support or embedding material be added.

 

Special Processing:

Lab Staff: Sample should be kept frozen and stored at –20 ºC to –70 ºC.  Ship frozen. Forward promptly.

Patient Preparation:

Physician preference

Sample Rejection:

Thawed specimen

Interpretive

Reference Range:

Lactase:

24.5 +/- 8.0 uM/min/gram protein; Abnormal <15.0

Sucrose:

54.4 +/- 25.4 uM/min/gram protein; Abnormal <25.0

Maltase:

160.8 +/- 62.8 uM/min/gram protein; Abnormal <100.0

Palatinase:

11.1 +/- 6.5 uM/min/gram protein; Abnormal <5.0

Critical Values:

N/A

Limitations:

N/A

Methodology:

Spectrophotometry

References:

Joli Diagnostic September 2013
(716) 639-0443  Fax: (716) 639-0471

Mayo Medical Laboratories September 2013
(800) 533-1710

Update:

2/15/2011: CPT update. Previously listed as 89130 x4.