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| GTT 2 Samples | - |
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Measure glucose tolerance |
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Synonym | See updates |
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Test Code | CDBIOPR0012 |
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Test Type | Biochemistry |
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Pre-Test Condition | See updates |
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Report Availability | 1 D(s) |
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# Test(s) | Multiple |
| Test details | Sample Report |
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| GTT 2 Samples |
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Synonym | See updates | |
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Test Code | CDBIOPR0012 | |
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Test Category | Diabetes | |
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Pre-Test Condition | See updates | |
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Medical History | See updates | |
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Report Availability | 1 D(s) | |
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Specimen/Sample | Serum; 2 mL; SST | |
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Stability @21-26 deg. C | 6 Hr(s) | |
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Stability @ 2-8 deg. C | 7 D(s) | |
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Stability @ Frozen | 1 M(s) | |
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# Test(s) | Multiple | |
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Processing Method | Spectrophotometry | |
| **Glucose Tolerance Test OGTT 75 gm glucose 2 samples fasting and 2 hrs****FDA Status**: Standard laboratory procedure under CLIA; no specific FDA approval required.**Other Names**: OGTT 2-Hour Test, Diabetes Test.**Historical Breakthrough**: Developed in the 1960s to diagnose diabetes, advancing endocrinology.**Key Purpose and Impact**: Measures fasting and 2-hour glucose after 75g glucose load to diagnose diabetes or prediabetes.**Preparation and Patient History**: Fasting blood, then 75g glucose; report polyuria, thirst, or diabetes history.**Consent Requirement**: Standard consent for diagnostic testing.**Clinical Value**: Sensitivity ~95%; specificity ~95%; detects diabetes in ~90% of cases; guides therapy.**References Cited**: Testing.com Diabetes Tests 2023; Labcorp OGTT Test 2025; UpToDate Diabetes Diagnosis 2025 |