GTT (After 75 Grams Glucose load (Fasting, 75 grm Glucouse, 2 hours ) ( for General Population)

Specimen Required

Sodium Fluoride Vial (Sugar Vial)

Fasting Required

This test requires fasting before sample collection.

Purpose of the Test

The GTT is used to diagnose diabetes and prediabetes. It can also be used to monitor people who have been diagnosed with diabetes to see if their treatment plan is working effectively.

When this test is required

The GTT is typically requested if your healthcare provider suspects you have diabetes or prediabetes, especially if you have symptoms like increased thirst, frequent urination, unexplained weight loss, or fatigue. It may also be recommended if you have risk factors for diabetes, such as a family history of diabetes, overweight, or if you had gestational diabetes during pregnancy.

What the Test Detects

The GTT (Glucose Tolerance Test) measures how well your body can metabolize glucose after consuming a specific amount of glucose (75 grams) in a fasting state. It assesses your body’s ability to use and store glucose effectively by measuring your blood sugar levels before and after the glucose load.

Preparation for the Test

To prepare for the test, you will need to fast for at least eight hours before the test, which means not eating or drinking anything except water. Your doctor may also advise you to stop taking certain medications or supplements before the test, as they can affect your blood sugar levels. During the test, you will be given a glucose solution to drink, and your blood sugar levels will be measured at specific intervals over a two-hour period. It’s important to follow your doctor’s instructions carefully to ensure accurate test results.

Sample Requirements

The test requires a blood sample, which is usually taken from a vein in your arm.

Additional Notes

It’s important to follow the instructions provided by your healthcare provider when preparing for the GTT. Fasting for at least 8 hours before the test is necessary to ensure accurate results. Additionally, you should avoid physical activity and stress during the test, as both can affect your blood sugar levels. Your healthcare provider will interpret your GTT results and advise you on the appropriate course of action based on your individual situation.

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