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Lab Dept:
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Anatomic Pathology
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Test Name:
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DISACCHARIDASE ANALYSIS ON GI BIOPSIES
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General Information
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Lab Order Codes:
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DSAC
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Synonyms:
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N/A
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CPT Codes:
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82657 x3 – Enzyme activity in blood cells, cultured cells, or tissue, not elsewhere specified; nonradioactive substrate, each specimen
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Test Includes:
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Dissacharidase (includes lactase, sucrase, maltase & palatinase) levels reported in uM/min/gram protein.
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Logistics
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Test Indications:
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N/A
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Lab Testing Section:
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Anatomic Pathology - Sendouts
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Referred to:
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Mayo Medical Laboratories, Test # 91414 (forward to Joli Diagnostics, Inc.)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6711
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651-220-6560
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1 week
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Special Instructions:
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N/A
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Specimen
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Specimen Type:
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Intestinal biopsy
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Container:
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Small, tightly capped, plastic tube
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Draw Volume:
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5 mg of intestinal biopsy specimen
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Processed Volume:
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Same Draw Volume
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Collection:
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Collect fresh tissue. Do not place tissue on gauze or filter paper, nor should any saline, support or embedding material be added.
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Special Processing:
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Lab Staff: Sample should be kept frozen and stored at –20 ºC to –70 ºC. Ship frozen. Forward promptly.
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Patient Preparation:
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Physician preference
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Sample Rejection:
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Thawed specimen
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Interpretive
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Reference Range:
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Lactase:
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24.5 +/- 8.0 uM/min/gram protein; Abnormal <15.0
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Sucrose:
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54.4 +/- 25.4 uM/min/gram protein; Abnormal <25.0
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Maltase:
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160.8 +/- 62.8 uM/min/gram protein; Abnormal <100.0
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Palatinase:
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11.1 +/- 6.5 uM/min/gram protein; Abnormal <5.0
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Critical Values:
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N/A
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Limitations:
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N/A
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Methodology:
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Nucleic Acid Amplification Technology
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References:
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Joli Diagnostic April 2010
(716) 639-0443 Fax: (716) 639-0471
Mayo Medical Laboratories December 2009
(800) 533-1710
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Update:
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2/15/2011: CPT update. Previously listed as 89130 x4.
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