Glucose Tolerance Test (GTT), Two-hour (Oral WHO Protocol) details

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Glucose Tolerance Test (GTT), Two-hour (Oral WHO Protocol)

Labcorp

Broadest draw-site network nationwide.

Sample type: Serum
Avg. sample processing time: 2 Business days
Require fasting: Yes

BiomarkersLabcorp biomarkers

Fasting Glucose Blood sugar measured after fasting, one of the primary tests used to screen for prediabetes and diabetes.
Glucose, 2-hour (post 75 g glucose PO)

$12.99

Glucose Tolerance Test (GTT), Two-hour (Oral WHO Protocol)

Quest Diagnostics

Same-day appointments in most metros.

This test is coming soon at Quest Diagnostics.

Description

The Glucose Tolerance Test (GTT), Two-hour (Oral WHO Protocol) evaluates the body's ability to metabolize glucose by measuring blood glucose levels before and two hours after consuming a standardized glucose solution. It is used to diagnose glucose intolerance, type 2 diabetes, and gestational diabetes in pregnant women. This test is particularly useful for patients with borderline fasting or postprandial glucose levels and in the investigation of conditions like unexplained hyperglycemia, hypertriglyceridemia, and other metabolic abnormalities.

Included biomarkers

Biomarkers

Fasting Glucose Blood sugar measured after fasting, one of the primary tests used to screen for prediabetes and diabetes.
Glucose, 2-hour (post 75 g glucose PO)

Preparation

Labcorp

Stay active and eat your regular diet for at least 3 days before your blood draw. Your daily diet should include at least 150 grams of carbohydrates (examples: bread, rice, fruit, pasta).
Fasting for 8 to 14 hours before collection is required.
Fasting before a blood draw means you don't eat or drink anything except water.
Your doctor should provide any special instructions related to fasting for your test. Always follow your doctor's instructions.
If possible, stop taking nonessential medications that can affect blood sugar (glucose) at least 3 days before your blood draw. DO NOT discontinue any prescription medications without first consulting your healthcare provider.

Quest Diagnostics

This test is coming soon at Quest Diagnostics.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

ConsultationsConsultation

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