Question
You diagnosed a patient with diabetes, which lab below confirms your diagnosis?
Group of answer choices
A 2 hour postprandial blood glucose level of 170 mg/dL on glucose tolerance test.
A fasting plasma glucose level of 100 mg/dL
An elevated BUN
A glycated hemoglobin (HbA1c) value of 7
Group of answer choices
A 2 hour postprandial blood glucose level of 170 mg/dL on glucose tolerance test.
A fasting plasma glucose level of 100 mg/dL
An elevated BUN
A glycated hemoglobin (HbA1c) value of 7
Answers
GPT-4o mini
To confirm a diagnosis of diabetes, the following criteria from the American Diabetes Association (ADA) guidelines can be used:
1. Fasting plasma glucose (FPG) level of 126 mg/dL or higher.
2. 2-hour plasma glucose level of 200 mg/dL or higher during an Oral Glucose Tolerance Test (OGTT).
3. A HbA1c value of 6.5% or higher.
4. A random plasma glucose of 200 mg/dL or higher in a patient with classic symptoms of hyperglycemia or hyperglycemic crisis.
Based on the options provided:
- **A 2-hour postprandial blood glucose level of 170 mg/dL** on glucose tolerance test (This does not meet the threshold for confirmation of diabetes, which is 200 mg/dL or higher).
- **A fasting plasma glucose level of 100 mg/dL** (This is considered normal as a fasting level must be 126 mg/dL or higher to be diagnostic).
- **An elevated BUN** (This is a measure of kidney function, not a test for diabetes diagnosis).
- **A glycated hemoglobin (HbA1c) value of 7%** (This is diagnostic for diabetes, as it is above the 6.5% threshold).
Therefore, the correct answer is **A glycated hemoglobin (HbA1c) value of 7%**.
1. Fasting plasma glucose (FPG) level of 126 mg/dL or higher.
2. 2-hour plasma glucose level of 200 mg/dL or higher during an Oral Glucose Tolerance Test (OGTT).
3. A HbA1c value of 6.5% or higher.
4. A random plasma glucose of 200 mg/dL or higher in a patient with classic symptoms of hyperglycemia or hyperglycemic crisis.
Based on the options provided:
- **A 2-hour postprandial blood glucose level of 170 mg/dL** on glucose tolerance test (This does not meet the threshold for confirmation of diabetes, which is 200 mg/dL or higher).
- **A fasting plasma glucose level of 100 mg/dL** (This is considered normal as a fasting level must be 126 mg/dL or higher to be diagnostic).
- **An elevated BUN** (This is a measure of kidney function, not a test for diabetes diagnosis).
- **A glycated hemoglobin (HbA1c) value of 7%** (This is diagnostic for diabetes, as it is above the 6.5% threshold).
Therefore, the correct answer is **A glycated hemoglobin (HbA1c) value of 7%**.