Glucose, 30-Minute (after 75 g Oral Glucose) details
What Glucose, 30-Minute (after 75 g Oral Glucose) shows
In a 75 g oral glucose tolerance test, you drink a standard glucose solution after fasting, and blood is drawn at set times to see how your body handles the sugar. This value is your glucose level 30 minutes after the drink, which captures the early rise before insulin brings glucose back down. Adding a half-hour sample gives a more detailed picture of the glucose curve. A higher early value can reflect fast absorption or a slower early insulin response, but on its own it is not used to diagnose diabetes. It is interpreted together with the fasting, one-hour, two-hour and later samples.
Tests that include Glucose, 30-Minute (after 75 g Oral Glucose)
For appropriate interpretation of this test, the patient must fast overnight and ingest a 75 g load of glucose, immediately after a fasting specimen is obtained. (for children, the glucose load is 1.75 g/Kg of body weight, up to 75). The diagnosis of diabetes is made if glucose exceeds 200 mg/dL in the 2 hour specimen and in any preceding specimen.
- Fasting Glucose Blood sugar measured after fasting, one of the primary tests used to screen for prediabetes and diabetes.
- Glucose, 1-Hour (after 75 g Oral Glucose) Your blood glucose one hour after a 75 g glucose drink, part of an oral glucose tolerance test used to assess how your body handles sugar.
- Glucose, 2-Hour (after 75 g Oral Glucose) Your blood glucose two hours after a 75 g glucose drink, a key value in the oral glucose tolerance test for diabetes and prediabetes.
- Glucose, 3-Hour (after 75 g Oral Glucose) Your blood glucose three hours after a 75 g glucose drink, part of an extended glucose tolerance test that also looks for late drops in sugar.
- Glucose, 30-Minute (after 75 g Oral Glucose) Your blood glucose 30 minutes after a 75 g glucose drink, part of an extended glucose tolerance test that tracks your early sugar response.
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