GTT (75gm glucose), in Bengaluru

Fasting and diet:

A morning sample after an overnight fast of 8 to 12 hours works best. Sip water freely, but avoid food, milk, tea, coffee, and alcohol until the draw.

What to bring:

Bring your doctor's prescription, a valid photo ID, and your insurance card if you're using cashless OPD. Loose sleeves make collection easier.

Medication:

If you use insulin or diabetes tablets, follow your doctor's advice; for a fasting glucose, most people take the dose after the sample. HbA1c timing does not affect the result.

Timing and slots:

Choose a morning slot for the most consistent results. Same-day home collection is offered throughout Bengaluru, Bellandur and Malleshwaram included.

Single standalone test:

GTT (75gm glucose). Can be ordered individually or as part of a preventive health package on GetVisit.

When does a doctor order GTT (75gm glucose)?

GTT (75gm glucose) is part of diabetes screening and gestational diabetes evaluation. Doctors may order it if you have symptoms like excessive thirst, frequent urination, unexplained tiredness, or if routine blood sugar tests are borderline.

Who should get GTT (75gm glucose) done in Bengaluru?

Karnataka has a reported diabetes prevalence among India's highest for southern states. Bengaluru's rapidly expanding IT workforce , largely sedentary, eating irregular high-calorie meals, under constant project deadlines in Electronic City, Whitefield, and Koramangala , faces significant metabolic risk from as early as 27 to 28. Those who benefit most from regular GTT (75gm glucose) testing include adults above 40, people with sedentary lifestyles or BMI above 25, those managing chronic conditions, smokers, and anyone whose previous result was borderline. Early detection through regular testing in Bengaluru is consistently more cost-effective than treating advanced disease.

What conditions can GTT (75gm glucose) help diagnose?

It helps diagnose diabetes, prediabetes, and pregnancy-related glucose intolerance. Abnormal results can come from poor diet, obesity, insulin resistance, certain medicines, or pancreatic disease. A family history of diabetes often makes this test important.

What do GTT (75gm glucose) results mean?

Post-meal glucose (2 hours after eating) above 140 mg/dL indicates impaired glucose tolerance. Above 200 mg/dL with symptoms is diagnostic of diabetes. Oral glucose tolerance test (OGTT): 2-hour value below 140 mg/dL is normal, 140–199 mg/dL is pre-diabetes, 200 mg/dL or above is diabetes.

How often should GTT (75gm glucose) be repeated?

Adults with a normal result: every 3 years from age 30, or annually if overweight or with a family history. Pre-diabetics: every 6 to 12 months. Diagnosed diabetics: HbA1c every 3 months until controlled, then every 6 months. Testing frequency rises during medication changes or pregnancy.

What happens after GTT (75gm glucose) results are ready?

After the lab authorises your results, the report is uploaded to your GetVisit account and saved for future comparison. If anything falls outside the expected range, your doctor can advise whether it needs a repeat test, a lifestyle change, or a specialist opinion.