Glucose Tolerance Test Concepts

The video by Dr. Suresh explains the Glucose Tolerance Test (GTT), a diagnostic tool to assess the body's ability to utilize glucose. It covers the types of GTT, including oral and intravenous methods, and details the procedure for conducting the test. The video also explains how to interpret the results, which can indicate normal, decreased, or increased glucose tolerance. Various conditions affecting GTT results, such as diabetes mellitus and thyroid disorders, are discussed. The significance of GTT in diagnosing pre-diabetes and other endocrine dysfunctions is highlighted.

What is the primary purpose of the Glucose Tolerance Test (GTT)?

• To evaluate kidney function

• To assess the body's ability to utilize glucose

• To measure blood pressure levels

• To determine cholesterol levels

Which of the following is NOT a method of performing a GTT?

• Intermittent GTT

• Intravenous GTT

• Subcutaneous GTT

• Oral GTT

During a GTT, when is the first blood sample typically taken?

• Immediately after consuming glucose

• After a 24-hour fasting period

• After a 12-hour fasting period

• Before dinner

What does a normal glucose tolerance curve indicate?

• Blood glucose levels remain constant

• Blood glucose levels fall below normal

• Blood glucose levels rise and then fall to normal

• Blood glucose levels continuously rise

Which condition is associated with a decreased glucose tolerance curve?

• Hypothyroidism

• Diabetes mellitus

• Addison's disease

• Cretinism

Increased glucose tolerance is often seen in which condition?

• Hyperthyroidism

• Hypopituitarism

• Diabetes mellitus

• Cushing's syndrome

What is the significance of a GTT in diagnosing pre-diabetes?

• It helps identify asymptomatic hyperglycemia

• It confirms the presence of diabetes

• It measures insulin levels directly

• It evaluates liver function

According to WHO, what is the normal 2-hour glucose level in a GTT?

• Between 140 and 200 mg/dL

• Exactly 126 mg/dL

• More than 200 mg/dL

• Less than 140 mg/dL

What fasting glucose level indicates diabetes mellitus according to WHO criteria?

• Less than 110 mg/dL

• Between 110 and 126 mg/dL

• More than 126 mg/dL

• Exactly 140 mg/dL

Which of the following is a new criterion for monitoring type 2 diabetes complications?

• 2-hour glucose level

• HbA1c level

• Cholesterol level

• Fasting glucose level