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
Refrigerated: Unacceptable
Frozen: 31 days
Methodology
Spectrophotometry (SP)
Reference Range
Lactase 15.0 - 45.5 uM/min/g prot
Sucrase 25.0 - 69.9 uM/min/g prot
Laltase 100.0 - 224.4 uM/min/g prot
Palatinase 5.0 - 26.3 uM/min/g prot
Sucrase 25.0 - 69.9 uM/min/g prot
Laltase 100.0 - 224.4 uM/min/g prot
Palatinase 5.0 - 26.3 uM/min/g prot
Performing Laboratory
Quest
New York DOH Approval Status
Yes