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Preparation instructions: Individual should be active and eat a regular diet that includes at least 150 grams of carbohydrate daily for three days prior to the test, and should be water-fasted for at least eight hours and not more than 14 hours before the test.

Description: A test that measures glucose levels at baseline and 2 hours after consuming 75g of glucose solution

Turnaround time: Expected turnaround is within one day, although this may vary depending on other tests ordered for the same blood draw, and expected variation with testing.

Also Known As

  • Fasting, Two-hour Glucose Tolerance Test
  • Oral Glucose Tolerance Test
  • OGTT