Result Test Name
GLUCOSE POST PRANDIAL/2 HOUR
Laboratory
QUEST LAB
Result Test Code
12325014600
Laboratory Test Name
QUEST GLUCOSE TOLERANCE TEST POSTPRANDIAL/2-HOUR
Reportable Test Name
-
Result LOINC
1521-4
Collection Container
K OXALATE AND NA FLUORIDE - GREY TOP
Units
-
Collection Requirements
Preferred Specimen(s) 1 mL plasma collected in a fluoride/oxalate (gray-top) tube Alternative Specimen(s) Plasma from fluoride/oxalate (gray-top) lithium heparin (green-top) or sodium heparin (green-top) tube in a plastic screw-cap vial Serum (separated from cells immediately) in a plastic screw-cap vial Spun SST Minimum Volume 0.5 mL Collection Instructions Specimen is obtained 2 hours following a meal. Serum and plasma submissions must be separated from cells.
Container Temp
Room Temperature (1)
Container Volume
.500
Test Info
Glucose Tolerance Test Postprandial/2-Hour - Postprandial glucose levels may be abnormally high in patients with gestational diabetes. If results are positive and the patient is pregnant a 3-hour oral glucose tolerance test should be performed for confirmation of gestational diabetes.
Shipping Instructions
Transport Container Fluoride/oxalate (gray-top) tubes Transport Temperature Room temperature Specimen Stability Serum Room temperature: 4 days Refrigerated: 7 days Frozen: 28 days Whole blood (gray-top) tube Room temperature: 24 hours Refrigerated: 72 hours Frozen: Unacceptable Sodium fluoride plasma Room temperature: 7 days Refrigerated: 7 days Frozen: 28 days Heparinized plasma Room temperature: 48 hours Refrigerated: 7 days Frozen: 28 days Reject Criteria Unspun serum or plasma separator tube (SST or PST) Red-top or green-top tube (serum or heparinized plasma not separated from cells) Anticoagulants other than lithium heparin sodium heparin or fluoride/oxalate