Follow your clinician’s instructions exactly before the test
Ask whether you need to fast and for how long
Eat balanced meals in the days before the test
Avoid very high-sugar foods and drinks before the test
Avoid alcohol before the test
Stay hydrated with water unless told otherwise
Get normal sleep the night before
Avoid unusually intense exercise before the test
Take medications only as directed by your clinician
Tell your clinician about all medicines and supplements you use
Arrive on time for the test
Do not smoke or chew gum if instructed not to
For a glucose tolerance test, finish the glucose drink exactly as directed
Remain seated and avoid eating or drinking anything else during the test if instructed
If you feel unwell, tell the staff immediately
If you are pregnant, follow the specific pregnancy test instructions exactly