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Glucose tolerance test

The full timed glucose test at home, including the timed draws your doctor ordered.

The nurse stays with you for the whole test: a baseline draw, the glucose drink, and each timed draw your order requires. Common during pregnancy and for diabetes screening.

How to prepare

  • Fast as instructed by your doctor (usually 8–12 hours for the 2- and 3-hour tests).
  • Stay seated and avoid eating, smoking, or exercising during the test.
  • Have your doctor's order and the glucose drink if your doctor provided one.