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Glucose Tolerance Test, Postprandial, 2-Hour
Quest Diagnostics1 test optionFrom $7.50
Glucose Tolerance Test, Postprandial, 2-Hour
Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
DetailsGlucose Tolerance Test, Postprandial/2-Hour – This test checks for abnormally high glucose levels after eating, which may indicate gestational diabetes in pregnant patients. If initial results suggest gestational diabetes, a more detailed 3-hour oral glucose tolerance test is recommended for confirmation.
What patients is this test right for?This test is particularly important for pregnant individuals who may show signs of gestational diabetes, a condition that can affect both mother and baby's health.
What type of sample is required for this test?1 mL plasma. It requires drawing blood into a fluoride/oxalate (gray-top) tube.
Test ResourcesFor more information on gestational diabetes and the glucose tolerance test, consult healthcare professionals or visit reputable medical websites.
Additional test information
This test is particularly important for pregnant individuals who may show signs of gestational diabetes, a condition that can affect both mother and baby's health.
Collection and processing
- Sample type: Plasma
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Plasma. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
DetailsGlucose Tolerance Test, Postprandial/2-Hour - This test checks for abnormally high glucose levels after eating, which may indicate gestational diabetes in pregnant patients. If initial results suggest gestational diabetes, a more detailed 3-hour oral glucose tolerance test is recommended for confirmation.
What patients is this test right for?This test is particularly important for pregnant individuals who may show signs of gestational diabetes, a condition that can affect both mother and baby's health.
What type of sample is required for this test?1 mL plasma. It requires drawing blood into a fluoride/oxalate (gray-top) tube.
Test ResourcesFor more information on gestational diabetes and the glucose tolerance test, consult healthcare professionals or visit reputable medical websites.
Additional details
This test is particularly important for pregnant individuals who may show signs of gestational diabetes, a condition that can affect both mother and baby's health.
Highlighted health areas
- Metabolic function
- Nutrition
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Glucose, Postprandial (2 Hour)