The Oral Glucose Tolerance Test (OGTT) checks how your body processes a measured sugar drink over time. It is the most sensitive test for impaired glucose tolerance and is widely used to screen for gestational (pregnancy) diabetes.
Clinical use cases
Why doctors order it
Diabetes diagnosis
Gestational diabetes
Impaired glucose tolerance
Diabetes mellitus
Diagnoses diabetes & IGT
Gestational diabetes screening
About this test
The Oral Glucose Tolerance Test (OGTT) checks how your body processes a measured sugar drink over time. It is the most sensitive test for impaired glucose tolerance and is widely used to screen for gestational (pregnancy) diabetes.
Clinical significance
After a fasting sample, you drink a standard glucose solution and sugar is measured at intervals (commonly 1 and 2 hours). It detects diabetes and pre-diabetes that fasting tests may miss and is the standard screen for gestational diabetes, helping protect both mother and baby.
Get tested if you have these symptoms
Pregnancy (routine GDM screening)
Borderline fasting sugar results
Family history of diabetes, PCOS or previous GDM
Overweight with risk factors
What this test detects
Gestational diabetes
Impaired glucose tolerance
Diabetes mellitus
Normal ranges
Fasting: < 100 mg/dL
2-hour: < 140 mg/dL normal
2-hour diabetes: ≥ 200 mg/dL
Reference ranges vary by lab and patient demographic. Interpret with a clinician.
Sample & preparation
Sample type
Blood (Multiple Draws)
Fasting
Yes
Report TAT
Same day / 24 hours
Home collection
Available
How to prepare
1Fasting required
2Remain seated during test
Frequently asked questions
What is the OGTT (Oral Glucose Tolerance Test)?
The Oral Glucose Tolerance Test (OGTT) checks how your body processes a measured sugar drink over time. It is the most sensitive test for impaired glucose tolerance and is widely used to screen for gestational (pregnancy) diabetes.
What conditions does the OGTT (Oral Glucose Tolerance Test) detect?
The OGTT (Oral Glucose Tolerance Test) helps detect and monitor conditions including Gestational diabetes, Impaired glucose tolerance, Diabetes mellitus.
How should I prepare for the OGTT (Oral Glucose Tolerance Test)?
Fasting required; remain seated during test
What is the normal range for the OGTT (Oral Glucose Tolerance Test)?
Fasting: < 100 mg/dL
2-hour: < 140 mg/dL normal
2-hour diabetes: ≥ 200 mg/dL Note: reference ranges may vary by laboratory and should be interpreted by your doctor in the context of your overall health.
How much does the OGTT (Oral Glucose Tolerance Test) cost?
The OGTT (Oral Glucose Tolerance Test) is available at ₹599 (MRP ₹1099) on PingMeDoc with free home sample collection. Prices are inclusive of sample collection charges.
How long does the OGTT take?
Plan for about 2–3 hours. After a fasting sample, you drink a glucose solution and further samples are taken (commonly at 1 and 2 hours), so you'll need to stay at the lab between draws.
Why is OGTT used in pregnancy?
It is the standard screen for gestational diabetes, which often causes no symptoms but can affect mother and baby. Detecting and treating it early helps ensure a healthy pregnancy.
Does the OGTT (Oral Glucose Tolerance Test) test require fasting?
Yes. You must fast for 8 hours before the OGTT (Oral Glucose Tolerance Test) test. You may drink water during the fasting period. Avoid alcohol for 24 hours before the test.
How much does the OGTT (Oral Glucose Tolerance Test) test cost at PingMeDoc?
The OGTT (Oral Glucose Tolerance Test) test costs ₹599 at PingMeDoc (MRP ₹1099). Free home sample collection is included. NABL-accredited lab processing. Reports delivered digitally in same day / 24 hours.
How long does it take to get OGTT (Oral Glucose Tolerance Test) test results?
OGTT (Oral Glucose Tolerance Test) test results are typically available within same day / 24 hours after sample collection. You can view and download your digital report from your PingMeDoc dashboard.
What type of sample is needed for the OGTT (Oral Glucose Tolerance Test) test?
The OGTT (Oral Glucose Tolerance Test) test requires blood (multiple draws). A trained phlebotomist will collect the sample at your home at your preferred time slot.
Is the OGTT (Oral Glucose Tolerance Test) test NABL accredited?
Yes. All lab tests on PingMeDoc, including the OGTT (Oral Glucose Tolerance Test) test, are processed by NABL-accredited and ISO-certified labs. Reports are reviewed and available on your dashboard.
Is home sample collection free for this test?
Yes. Home sample collection for the OGTT (Oral Glucose Tolerance Test) test is free when booking through PingMeDoc. A phlebotomist visits your home or office at your scheduled time slot.
What conditions does the OGTT (Oral Glucose Tolerance Test) test help screen for?
The Oral Glucose Tolerance Test (OGTT) checks how your body processes a measured sugar drink over time. It is the most sensitive test for impaired glucose tolerance and is widely used to screen for gestational (pregnancy) diabetes. It is commonly used for: Gestational (pregnancy) diabetes screening, Diagnosing impaired glucose tolerance, Detecting early diabetes.
How should I prepare for the OGTT (Oral Glucose Tolerance Test) test?
Fast for 8–10 hours before the test (water allowed). Plan for 2–3 hours at the lab — multiple samples are taken. Eat normally for a few days before; don't restrict carbs. Stay seated and avoid smoking during the test.
Test details are for general information only and not a substitute for medical advice. Reference ranges vary between labs. Always discuss results with a registered medical practitioner before starting, stopping or changing any treatment.
₹599₹1,09945% OFF
Free home collection
What this test measures
6 parameters in the OGTT (Oral Glucose Tolerance Test)
The OGTT (Oral Glucose Tolerance Test) reports the following parameters. Reference ranges are typical adult values from NABL-accredited partner labs and may vary slightly by lab, age and sex — always read results with your doctor.
you drink a standard glucose solution and sugar is measured at intervals (commonly 1 and 2 hours). It detects diabetes and pre-diabetes that fasting tests may miss and is the standard screen for gestational diabetes
helping protect both mother and baby.
Get the OGTT (Oral Glucose Tolerance Test) if you have these symptoms
The Oral Glucose Tolerance Test (OGTT) checks how your body processes a measured sugar drink over time. It is the most sensitive test for impaired glucose tolerance and is widely used to screen for gestational (pregnancy) diabetes.
What conditions does the OGTT (Oral Glucose Tolerance Test) detect?
The OGTT (Oral Glucose Tolerance Test) helps detect and monitor conditions including Gestational diabetes, Impaired glucose tolerance, Diabetes mellitus.
How should I prepare for the OGTT (Oral Glucose Tolerance Test)?
Fasting required; remain seated during test
What is the normal range for the OGTT (Oral Glucose Tolerance Test)?
Fasting: < 100 mg/dL
2-hour: < 140 mg/dL normal
2-hour diabetes: ≥ 200 mg/dL Note: reference ranges may vary by laboratory and should be interpreted by your doctor in the context of your overall health.
How much does the OGTT (Oral Glucose Tolerance Test) cost?
The OGTT (Oral Glucose Tolerance Test) is available at Rs 599 (MRP Rs 1099) on PingMeDoc with free home sample collection across India. Prices are inclusive of sample collection charges.
