Glucose Tolerance Test Report Format
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What is Glucose Tolerance Test?
The glucose tolerance test (GTT) measures how well the body processes glucose. It helps diagnose diabetes, prediabetes, and gestational diabetes by monitoring blood sugar levels after consuming a glucose solution.
What is Glucose Tolerance Test Report Format?
A GTT report presents the blood glucose levels at different intervals after drinking a glucose solution, typically at fasting, 1 hour, and 2 hours. The results are compared with reference ranges to assess glucose tolerance.
Tests Included in Glucose Tolerance Test Report
Test | Description |
Fasting Glucose | Measures blood glucose levels after an overnight fast. |
1-Hour Glucose | Measures blood glucose 1 hour after drinking the glucose solution. |
2-Hour Glucose | Measures blood glucose 2 hours after drinking the glucose solution. |
Key Parts of a Glucose Tolerance Test Report
Key Part | Description |
Fasting Glucose | The blood glucose level after fasting for at least 8 hours. |
1-Hour Glucose | The blood glucose level 1 hour after consuming the glucose drink. |
2-Hour Glucose | The blood glucose level 2 hours after consuming the glucose drink. |
Normal Range | The reference range for each time point to determine if the levels are normal. |
Normal Range for Glucose Tolerance Test Report
Test | Normal Range |
Fasting Glucose | 70 – 99 mg/dL |
1-Hour Glucose | < 180 mg/dL |
2-Hour Glucose | < 140 mg/dL |
Parameters to Consider in Glucose Tolerance Test Report
Parameter | Interpretation |
Fasting Glucose | High levels indicate insulin resistance, prediabetes, or diabetes. |
1-Hour Glucose | High levels suggest impaired glucose tolerance or early signs of diabetes. |
2-Hour Glucose | Elevated levels at 2 hours indicate diabetes or impaired glucose tolerance. |
Guidelines for Glucose Tolerance Test Report Format
Guideline | Description |
Test Results | Show fasting, 1-hour, and 2-hour glucose levels. |
Interpretation | Provide context on whether the results suggest normal glucose metabolism or indicate prediabetes or diabetes. |
What Do the Results Mean?
Result Type | Interpretation |
Normal Results | Fasting glucose < 100 mg/dL, 1-hour < 180 mg/dL, 2-hour < 140 mg/dL. |
Impaired Glucose | Fasting glucose 100-125 mg/dL, 2-hour glucose 140-199 mg/dL, suggesting prediabetes. |
Diabetes | Fasting glucose ≥ 126 mg/dL, 2-hour glucose ≥ 200 mg/dL, indicating diabetes. |
Glucose Tolerance Test Report Interpretation
Test | Interpretation |
Fasting Glucose | Elevated fasting glucose suggests insulin resistance or diabetes. |
1-Hour Glucose | High 1-hour glucose indicates potential early-stage glucose intolerance. |
2-Hour Glucose | Elevated 2-hour glucose levels confirm impaired glucose tolerance or diabetes. |
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