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The glucose tolerance test (GTT, not to be confused with GGT test) is a medical test in which glucose is given and blood samples taken afterward to determine how quickly it is cleared from the blood. [1] The test is usually used to test for diabetes, insulin resistance, impaired beta cell function, [2] and sometimes reactive hypoglycemia and ...
392 million (2015) [11] Type 2 diabetes ( T2D ), formerly known as adult-onset diabetes, is a form of diabetes mellitus that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. [6] Common symptoms include increased thirst, frequent urination, fatigue and unexplained weight loss. [3]
This procedure is performed to assess pituitary function, adrenal function, insulin sensitivity, and sometimes for other purposes. An ITT is usually ordered and interpreted by an endocrinologist . When used to assess insulin sensitivity, a standard dose of insulin is administered, and blood glucose is monitored with frequent sampling.
There are multiple ways to measure insulin resistance such as fasting insulin levels or glucose tolerance tests, but these are not often used in clinical practice. Insulin resistance can be improved or reversed with lifestyle approaches, such as weight reduction, exercise, and dietary changes.
Impaired fasting glucose is a type of prediabetes, in which a person's blood sugar levels during fasting are consistently above the normal range, but below the diagnostic cut-off for a formal diagnosis of diabetes mellitus. Together with impaired glucose tolerance, it is a sign of insulin resistance.
4.2 million (2019) [9] Diabetes mellitus, often known simply as diabetes, is a group of common endocrine diseases characterized by sustained high blood sugar levels. [10] [11] Diabetes is due to either the pancreas not producing enough insulin, or the cells of the body becoming unresponsive to the hormone's effects. [12]
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