How many hours should I fast for a glucose tolerance test?
You will be asked to come to the test fasting — not having had anything to eat or drink for the previous eight hours. A fasting blood sugar will be obtained. You’ll drink about 8 ounces (237 milliliters) of a glucose solution containing 3.5 ounces (100 grams) of sugar.
Do you have to fast for 1 hour glucose tolerance test?
FASTING is NOT required for this test. OBTAIN 1 bottle of 50 gram oral glucose tolerance beverage from the Clinic Lab staff. DRINK the entire bottle (10 ounces) of 50 gram glucose beverage within 5 minutes. Lab Staff will note the time you finish drinking the glucose solution.
Can I eat before 1 hour glucose test?
Do not eat, drink, smoke, or exercise strenuously for at least 8 hours before your first blood sample is taken. Tell your doctor about all prescription and nonprescription medicines you are taking. You may be instructed to stop taking certain medicines before the test.
Is 11 hours of fasting enough for blood test?
You usually need to fast for 8–12 hours before a test. Most tests that require fasting are scheduled for early in the morning.
What should I eat before my 1 hour glucose test?
Eat a meal low in carbohydrates before this test. Example of foods to eat for breakfast would be eggs, cheese, bacon and or sausage. Avoid breads, cereals and fruit juices. Example of foods for lunch would be lettuce/salad with any kind of meat.
Do you need to fast for gestational diabetes test?
Another name for this blood test is the glucose screening test. In this test, a health care professional will draw your blood 1 hour after you drink a sweet liquid containing glucose. You do not need to fast for this test. Fasting means having nothing to eat or drink except water.
Will drinking water mess up a glucose test?
Do not eat, drink, smoke, or exercise for at least 8-12 hours before your first blood sample is taken. You may drink plain water but no other beverages. This test may take up to four hours to complete. Activity can interfere with the results so you will need to remain in the lab for the duration of the test.