Glucose Tolerance Test-Additional Specimens
Label Mnemonic: | GT05 |
Epic code: | LAB4923 |
Order form: | Laboratory Requisition |
Supply order: | Supply Order Form |
Billing: | Billing Policies |
CPT code: | 82952 for each additional specimens |
Specimen(s):
Plasma
Collection Medium:
or | ||
Gray top tube 6 mL (Na Fluoride) | Plasma Separator Tube 4.5 mL (Centrifuge Immediately) |
Minimum:
3 mL whole blood for extra specimen (added to GTT series)
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Test
Limitations:
Icterus: No significant interference up to an I index of 60
(approximate conjugated and unconjugated bilirubin concentration: 60
mg/dL).
Hemolysis: No significant interference up to an H index of 1000 (approximate hemoglobin concentration 1000 mg/dL).
Lipemia (Intralipid): No significant interference up to an L index of 1000 (approximate triglycerides concentration 2000 mg/dL). There is poor correlation between turbidity and triglycerides concentration.
Hemolysis: No significant interference up to an H index of 1000 (approximate hemoglobin concentration 1000 mg/dL).
Lipemia (Intralipid): No significant interference up to an L index of 1000 (approximate triglycerides concentration 2000 mg/dL). There is poor correlation between turbidity and triglycerides concentration.
Methodology:
Hexokinase/UV Test
Instructions:
Gray top (Na Fluoride) collections: Transport whole blood to the laboratory within 24 hours.
Sample
Processing:
Centrifuge within one hour of draw time.
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Separate plasma or serum into labeled container and cap.
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Separate plasma or serum into labeled container and cap.
Sample
Storage:
Refrigerate.
Transport
Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
CPT Code:
82952 for each additional specimens