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What is GTT?

Glucose tolerance test measures how your body processes glucose. After eating some sugary food, you may have a higher level of sugar in the blood for an extended period of time than before eating. If this has been happening on and off over time, then it could be that there’s something else going on with their health like diabetes or prediabetes. In such conditions, obesity or overweight which leads to insulin resistance so they cannot absorb more carbohydrates into cells easily causing high levels after meals especially those containing lots starchy carbs.

Why GTT?

The GTT is a necessary test for people who have diabetes or suffer from any kind of glucose intolerance. The purpose behind it being conducted is to measure how our bodies process sugar, and if there might be problems with absorption happening within one’s own system- both healthy as well as unhealthy ones will show up here! The GTT is an important test for all patients. The goal of this glucose tolerance exam is to measure how your body absorbs and processes sugar, which may help identify if you have diabetes or not before symptoms appear!

Benefits Of GTT Test?

The GTT test is the best way for your doctor to tell if you're healthy or have diabetes. If he finds that his patient has high levels of sugar in their blood, then they will most likely recommend lifestyle changes like eating healthier foods and exercising more often so as not cause any problems down the road with these numbers!

How the GTT is done?

The GTT procedure is as follows; at first a zero-time or baseline blood sample is drawn, when patient is in fasting state. Then the patient drinks 75 grams of sugar (glucose) solution and after that samples are taken to measure their levels, at interval of 1hr and 2 hr post consumption.

Who should Do GTT?

The GTT test is a great tool for anyone who wants to know more about their own risk factors and how they can prevent diabetes. GTT stands for glucose tolerance tests, which measure your blood sugar level after you consume Glucose (sugar). If we're testing someone older than 50 years old without any history of diagnosed diabetes but still obese/ overweight then this may be an ideal time since there's been some evidence suggesting high levels in seniors might actually predict greater risks associated with it. Anyone who is interested in knowing the strength of pancreas should also under go this test.

The Do’s and Don’t of GTT

Have a normal diet like daily routine. Inform your doctor about all prescription drugs you're taking, because certain ones such as corticosteroids can cause false results; fasting is required for 8 - 10 hours prior to testing (only water allowed), so make sure that on mornings in which one must perform this particular kind of examination–you drink plenty beforehand! Nicotine and alcoholic products should also be avoided if possible since they may raise blood pressure levels during test. Also make Sure you have proper sleep.

Guidelines for GTT Testing in Madhavbaug


Diabetic Patients whose treatment is done in Madhavbaug Clinics and Hospitals and Allopathy medicines was stopped since last 40 to 45 Days as per the medical guidelines set by the Organization.


Before doing GTT test patient must do his HbA1c Test– If HbA1c less than 6.5 then go for 75-gram GTT test from accredited pathology lab to check if patients diabetes is reversed or not.


Clinic Heads needs to take confirmation from Zonal Medical Head.


Before Testing Day Minimum fasting of 8-10 hrs. is required.


Patient need to reach clinic around 8 am and his first sample should be taken before 8.30 am.


After his fasting sample, 75 gms of Glucose Solution is given to the patients orally.


Second blood sample will be collected exactly after 1 hr, after consuming Glucose solution.


Third blood sample will be collected after 2 hrs of glucose administration.


Pathology Lab will take 6-8 hrs to process the samples and give the reports to the patients.

How GTT Reports should be interpreted?

GTT StatusPost Prandial Sugar (2Hrs)
Negative (Non Diabetic)BSL< 140 mg/dl
Impaired (Pre Diabetic)BSL< 199 mg/dl
Positive (Diabetic)BSL > 200 mg/dl

This is all About Madhavbaug’s Diabetes Reversal Gold Standard Test- GTT…

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