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Type 2 diabetes is diagnosed by a specialist doctor through various laboratory tests and clinical assessments. The diagnostic process typically involves the following methods:
Fasting Plasma Glucose Test:
This test measures the blood sugar level in individuals suspected of having diabetes after a period of fasting. A fasting blood sugar level of 126 mg/dl or higher, usually after an 8-hour fast, supports a diagnosis of diabetes.
Oral Glucose Tolerance Test (OGTT):
The OGTT evaluates how the body processes blood sugar after a person consumes a specific amount of glucose-containing liquid. A plasma glucose level of 200 mg/dl or higher at the 2-hour mark of the test is indicative of Type 2 diabetes.
HbA1c Measurement:
HbA1c (glycated hemoglobin) is a test that reflects average blood sugar levels over the past 2-3 months. For a diagnosis of Type 2 diabetes, an HbA1c value of typically 6.5% or higher is accepted as a criterion.
Urine Test:
A positive result for glucose in a urine test can be an indicator of Type 2 diabetes. Normally, glucose should not be present in urine; therefore, the detection of glucose in urine may indicate the presence of diabetes.
How is Type 2 Diabetes Diagnosed?
Fasting Plasma Glucose Test:
This test measures the blood sugar level in individuals suspected of having diabetes after a period of fasting. A fasting blood sugar level of 126 mg/dl or higher, usually after an 8-hour fast, supports a diagnosis of diabetes.
Oral Glucose Tolerance Test (OGTT):
The OGTT evaluates how the body processes blood sugar after a person consumes a specific amount of glucose-containing liquid. A plasma glucose level of 200 mg/dl or higher at the 2-hour mark of the test is indicative of Type 2 diabetes.
HbA1c Measurement:
HbA1c (glycated hemoglobin) is a test that reflects average blood sugar levels over the past 2-3 months. For a diagnosis of Type 2 diabetes, an HbA1c value of typically 6.5% or higher is accepted as a criterion.
Urine Test:
A positive result for glucose in a urine test can be an indicator of Type 2 diabetes. Normally, glucose should not be present in urine; therefore, the detection of glucose in urine may indicate the presence of diabetes.