Glucose Tolerance Test, Gestational, 4 Specimens (100g) (Test)
- Pregnant individuals completing routine 3-hour gestational glucose screening
- Those following up after a failed 1-hour glucose challenge test
- Women in second trimester requiring 100g oral glucose tolerance evaluation
About Glucose Tolerance Test, Gestational, 4 Specimens (100g) (Test)
The Quest Diagnostics Gestational Glucose Tolerance Test (100g, 4-specimen) is a clinical diagnostic test used to screen for gestational diabetes during pregnancy. It involves consuming a 100-gram glucose solution followed by blood draws at four timed intervals to assess how the body processes glucose over time. This test is ordered for pregnant individuals, typically between 24–28 weeks gestation, who require comprehensive glucose metabolism evaluation.
Why It's Worth Considering: The 4-specimen protocol provides a detailed glucose response curve compared to shorter screening tests, offering clinicians more data points to support accurate clinical assessment.
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Who Benefits
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- Pregnant individuals completing routine 3-hour gestational glucose screening
- Those following up after a failed 1-hour glucose challenge test
- Women in second trimester requiring 100g oral glucose tolerance evaluation
- OB patients whose practitioners ordered 4-specimen gestational glucose draw
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