Plasma glucose 2.5 hrs after 75 gm glucose
The plasma glucose level measured 2.5 hours after a 75-gram glucose tolerance test (GTT) is a diagnostic tool used to assess glucose metabolism. This test involves measuring the glucose levels in the blood after fasting, followed by consuming a glucose solution. After 2.5 hours, a blood sample is taken to determine how efficiently the body has processed the glucose. Elevated glucose levels at this point may indicate impaired glucose tolerance or diabetes mellitus, providing valuable insights into an individual's metabolic health and potential risk for developing diabetes.
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How our test process works!
The plasma glucose test measures the amount of glucose (sugar) in your blood at a specific time point after consuming a 75-gram glucose solution. This test is often used to diagnose conditions like diabetes and gestational diabetes.
- Diabetes: A glucose tolerance test helps assess the risk or presence of diabetes. Higher than normal glucose levels indicate impaired glucose tolerance or diabetes.
- Gestational Diabetes: In pregnant women, this test helps diagnose gestational diabetes, which can pose risks to both mother and baby.
Normal Range
- Fasting Glucose: 70-99 mg/dL (3.9-5.5 mmol/L)
- 2.5 Hours Post-Glucose Load: Typically, glucose levels should return close to fasting levels or be lower than 140 mg/dL (7.8 mmol/L). Specific reference ranges may vary based on the laboratory and patient population.
- Normal: Blood glucose levels returning to near-fasting levels by 2.5 hours post-load, generally less than 140 mg/dL.
- Impaired Glucose Tolerance: Blood glucose levels between 140-199 mg/dL at the 2-hour mark post-load may indicate impaired glucose tolerance, a prediabetic state.
- Diabetes: Blood glucose levels 200 mg/dL or higher at the 2-hour mark post-load indicate diabetes.
- Hypoglycemia: Unusually low glucose levels could indicate reactive hypoglycemia, especially if symptoms are present.
- Specimen: Blood
- Sample Type: Plasma (the liquid portion of blood, separated from blood cells)
Procedure
- Preparation: The patient typically fasts for at least 8 hours before the test.
- Baseline Measurement: A fasting blood sample is taken to measure the baseline glucose level.
- Glucose Load: The patient drinks a solution containing 75 grams of glucose.
- Post-Load Measurements: Blood samples are taken at various intervals, commonly at 1 hour and 2 hours. For this specific test, a sample is taken at 2.5 hours post-glucose load.
Frequently Asked Question
Plasma glucose 2.5 hrs after 75 gm glucose/B.S.2.5 H AFTER 75GM GLUCOSE
Plasma glucose 2.5 hrs after 75 gm glucose
The plasma glucose level measured 2.5 hours after a 75-gram glucose tolerance test (GTT) is a diagnostic tool used to assess glucose metabolism. This test involves measuring the glucose levels in the blood after fasting, followed by consuming a glucose solution. After 2.5 hours, a blood sample is taken to determine how efficiently the body has processed the glucose. Elevated glucose levels at this point may indicate impaired glucose tolerance or diabetes mellitus, providing valuable insights into an individual's metabolic health and potential risk for developing diabetes.
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