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A glucose tolerance test helps check if someone has Diabetes. (This might be type-2, type-1, or gestational. )
The test deliberately elevates blood sugar, then monitors how quickly the pancreas can secrete insulin to bring sugar down to normal levels. The speed of lowering and the final blood sugar level after a few hours show pancreatic peak capacity.
This test is needed because blood sugar level varies over time and so one reading cannot, by itself, be used to determine if a person is diabetic.
The test can also determine if someone is borderline or pre-diabetic, if their final blood sugar levels are acceptable but the speed of lowering is not as good as usual.
What else can I help you with?
How is hypoglycemia diagnosed?
A common test to diagnose hypoglycemia is the extended oral glucose tolerance test.
How long is the standard glucose tolerance test?
The standard test is a 3 hour GTT (glucose tolerance test).
What does a glucose tolerance test entail?
The glucose tolerance test is a lab test to check how your body breaks down sugar.
When are blood glucose test and glucose tolerance test done durin pregnancy?
during the third triamester
What glucose tolerance test is an example of a specimen?
A1c
What color tube for glucose tolerance test?
A gray tube is typically used for a glucose tolerance test. This tube contains sodium fluoride as an additive to preserve glucose levels in the blood sample.
What color tube to test for glucose tolerance?
The tube used to test for glucose tolerance is typically a gray-top tube. This tube contains a preservative that helps prevent changes in glucose levels after the blood is drawn, ensuring accurate test results.
What laboratory department should glucose tolerance test be sent?
Chemistry
What should you eat before a glucose tolerance test?
When I had a glucose tolerance test during pregnancy I was told to fast from midnight the night before, I was told to only drink water and nothing else, hope that helps!
How many times is blood drawn in a two hour glucose tolerance test?
No tubes are required. This can simply be done using a "fingerstick" glucose monitor.
Can you have water before a glucose tolerance test?
It is generally recommended to fast for 8-12 hours before a glucose tolerance test, so it is best to avoid consuming anything, including water, during this fasting period. Water may dilute the glucose solution and affect the accuracy of the test results.
What is a GTT test when performing phlebotomy and what tube is used to collect?
A GTT test stands for glucose tolerance test, which is used to measure how well the body processes sugar. During this test, gray-top tubes containing sodium fluoride and potassium oxalate are commonly used to collect blood samples for glucose measurements.
