Test Details

Mnemonic

DISAC

Ordering Code

3724460

CPT-4 Code(s)

82657 x 4

Specimen Information

Collect

Small bowel biopsy

Specimen Preparation

Place 5 mg of small bowel biopsy in a 2ml cryovial polypropylene screw capped plastic tube. Freeze within 2 hours of collection at -20°C.

Minimum Volume

2 mg

Transport Temperature

Frozen

Rejection Criteria

Samples frozen later than 2 hours after collection; Samples received in urine containers; Samples in colorless fluid; Samples on gauze, filter paper or any other type of support media.

Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 31 days

Methodology

Spectrophotometry (SP)
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Reference Range

Lactase 10.1 - 43.4 mM/min/g prot
Sucrase 25.0 - 69.9 uM/min/g prot
Maltase 100.0 - 224.4 uM/min/g prot
Palatinase 2.2 - 24.4 uM/min/g prot
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Performing Laboratory

QUEST DIAGNOSTICS REFERENCE LAB VALENCIA
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