Lactose Tolerance 3 hour
Order Name
LACTOS TOL
Test Number: 2003300
Revision Date 05/28/2021
Test Number: 2003300
Revision Date 05/28/2021
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Lactose Fasting
|
Colorimetric | 2552-8 |
|
Lactose 0.5 Hour Tolerance
|
Colorimetric | 1584-2 |
|
Lactose 1 Hour Tolerance
|
Colorimetric | 1582-6 |
|
Lactose 2 Hour Tolerance
|
Colorimetric | 1583-4 |
|
Lactose 3 Hour Tolerance
|
Colorimetric | 19249-2 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | See Instructions | Plasma | Sodium Floride (Gray) | See Instructions |
| Instructions | 1mL (0.5) Plasma Sodium Floride (Gray) for each time of collection. Call Laboratory at (918) 744-2500 for instructions. Patient must be fasting overnight and during test. 50 grams of lactose is administered following an overnight fast. Specimen stability: Ambient 8 hours. Refrigerated 7 days, Frozen 3 months. |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Mon - Fri |
| Expected TAT | 1-2 days |
| Clinical Use | Used to determine primary lactose intolerance due to decrease synthesis of lactase, or secondary to any disease characterized by diffuse damage to the intestinal epithelium. |
| CPT Code(s) | 82951; 82952X2 |
| Lab Section | Chemistry |