Glucose Tolerance Test (GTT)
A biochemistry test, run in our accredited Georgetown laboratory.
Details
- Sample
- Serum (SST)
- Department
- Biochemistry
- Results
- About 6 hours after your sample is collected
- Fasting
- Fasting Required. Book a morning appointment.
- Lab code
- GTT
Before your visit
Fast for 8 to 12 hours before your test. Plan to stay about 2 hours; you will drink a glucose solution and give timed samples.
Bring a photo ID and, if you have one, your doctor’s request form. A prescription is not required for lab tests.

