Home
HelpTest Code DSAC Disaccharidase Activity Panel, Tissue
Shipping Instructions
Freeze immediately after collection and ship frozen.
Specimen Required
Source: Intestinal biopsy
Supplies: 15 mL Tissue Tube-DSAC (T993)
Container/Tube: 15 mL tissue tube
Specimen Volume: 5 mg
Collection Instructions:
1. Place specimen in tissue tube.
2. Specimen should not be placed on gauze, filter paper, or swabs/wooden sticks and should not have any saline, water, support, or embedding material added.
Genetics Test Information
Diagnostic testing for patients with clinical signs and symptoms suspicious of a disaccharidase deficiency.
Specimen Type
TissueSpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Tissue | Frozen | 28 days | OTHER |
Reject Due To
| Specimens sent in formaldehyde, saline, or any supportive media Specimens placed on gauze, filter paper, foil, or swabs/wooden sticks |
Reject |
Reference Values
Lactase: ≥14.0 nmol/min/mg protein
Sucrase: ≥19.0 nmol/min/mg protein
Maltase: ≥70.0 nmol/min/mg protein
Palatinase: ≥6.0 nmol/min/mg protein
Glucoamylase: ≥8.0 nmol/min/mg protein
Day(s) Performed
Monday through Friday
Report Available
3 to 4 daysSpecimen Retention Time
Biopsy homogenate: 1 monthPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82657