Glucose Tolerance (1 Hour Only) Gestational
Order Name
GLUC 1 HR
Test Number: 2012650
Revision Date 05/20/2021
Test Number: 2012650
Revision Date 05/20/2021
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Glucose Tolerance (1 Hour Only) Gestational
|
Hexokinase | 20438-8 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Plasma | Sodium fluoride (gray top) | Refrigerated |
| Alternate 1 | 1 mL (0.5) | Plasma | Lithium Heparin PST (Light Green Top) | Refrigerated |
| Alternate 2 | 1 mL (0.5) | Serum | Clot Activator SST | Refrigerated |
| Instructions | If the patient is not pregnant please use Glucose Tolerance (2 Hour Only) order name GLUC 2 HR. Fasting is not necessary. Preferably performed at 28 weeks gestation. Give 50 grams of glucola. Draw 1 hour after glucola load. Lithium heparin and clot tube must be spun within 2 hours for the integrity of the specimen. Stability: Ambient 8 hours, Refrigerated 7 days, Frozen 1 month Fluoride preserved plasma samples are stable at room temperature for 24 hours. |
|||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Daily |
| Expected TAT | 1-2 days |
| Clinical Use | This is the screening test for gestational diabetes. It should only be performed on pregnant females. The reference ranges and interpretive data contain the established reference ranges, interpretive data, and criteria for confirming diagnosis of gestational diabetes. The glucola dosing is 50g. |
| CPT Code(s) | 82950 |
| Lab Section | Chemistry |