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Test Code LAB3762 Disaccharidase in Tissue

Additional Codes


Clinical System Name

Disaccharidase in Tissue


Bowel Disaccharidases; Disaccharidases; Isomaltase; Lactase; Maltase; Palatinase; Sucrase

Sample Requirements

Specimen: Gastric Specimen

Container(s): Cryovial

Preferred Vol: 5.0 mg (x2)

Minimum Vol: 5.0 mg (x2)


Note: Obtain DRY ICE from Main Lab PRIOR to collecting sample. WET ICE IS NOT ACCEPTABLE. Sample MUST be placed on DRY ICE ASAP. Walk up to Main Lab on DRY ICE.

Processing Instructions

Reject due to:

Spin: N

Aliquot: N

Temp: -70 C


Storage location: KEEP SAMPLES ON DRY ICE WHILE PROCESSING. 1) Place a large Epic label on a 15 mL Falcon tube. 2) While keeping sample on dry ice, walk sample and labelled Falcon tube to the -70 C freezer. 3) Just outside the freezer quickly place cryovial sample in labelled Falcon tube, screw on top, then place Falcon tube in Send Outs -70 rack. Ask Send Outs if you have any questions.


Specimen Type Temperature Time
Duodenal Biopsy Room Temp Unacceptable
  Refrigerated Unacceptable
  Frozen 6 m



STAT Performed TAT
N M, W, F 3 - 8 d


Performing Laboratory

ARUP Laboratories

500 Chipeta Way
Salt Lake City, UT 84108-1221


Phone Number: (800) 522-2787


Department: Send Outs

Phone Number: (206) 987-2563

CPT Codes



Method: Quantitative Spectrophotometry

Analytical Volume: 5.0 mg Biopsies (x2)


Reference Range

Enzyme Reference Interval (µmol/min/g)
Lactase ≥ 10.0 µmol/min/g
Maltase ≥ 100.0 µmol/min/g
Palatinase ≥ 9.0 µmol/min/g
Sucrase ≥ 25.0 µmol/min/g

Send Out Instructions

Reference Test Name: Disaccharidase in Tissue
Reference Test Number: 3002037
Instructions: Send to ARUP Laboratories via FedEx Priority Overnight with Priority Alert Plus.