Glucose Tolerance (2 Hour Only) Glucola
Order Name
GLUC 2 HR
Test Number: 2002250
Revision Date 05/20/2021
Test Number: 2002250
Revision Date 05/20/2021
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Glucose Tolerance (2 Hour Only) Glucola
|
Hexokinase | 12610-2 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.5) | Plasma | Sodium Floride (Gray) | 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 | According to the American Diabetes Association, Collect specimen 2 hours after the patient ingests 75 grams of Glucola. Lithium heparin and clot tube must be spun within 2 hours for the integrity of the specimen. If doctor instructs the patient to ingest a "Normal Meal", then order "GLUC 2HRPC" Glucose Tolerance (2 Hour Only) Post Prandial. 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 | Criteria for Diagnosis of Diabetes from the American Diabetes Association recommends Random plasma glucose >200 mg/dl with symptoms (polyuria, polydypsia, and unexplained weight loss) repeated to confirm on subsequent day, or Fasting plasma glucose >126 mg/dl repeated to confirm, or 2-hr plasma glucose <200 mg/dl post 75g glucose challenge repeated to confirm. |
| Notes | Glucose measurements are used in the diagnosis and treatment of carbohydrate metabolism disorders including diabetes mellitus, neonatal hypoglycemia and idiopathic hypoglycemia and pancreatic islet cell carcinoma. |
| CPT Code(s) | 82950 |
| Lab Section | Chemistry |