LT
LabTestUAE
📊 Diabetes

Oral Glucose Tolerance Test (OGTT)

اختبار تحمل الجلوكوز الفموي

Sample Type

🧪 Blood

Results In

⏱ 6 Hours

Fasting

🍽 10 hours

Parameters

📊 2

What is Oral Glucose Tolerance Test (OGTT)?

A two-step test where blood glucose is measured fasting and then 2 hours after drinking a glucose solution. The gold standard for diagnosing gestational diabetes and glucose intolerance.

Why is this test important?

OGTT is more sensitive than fasting glucose alone for detecting impaired glucose tolerance. Standard screening for gestational diabetes at 24-28 weeks. 2-hour value >= 200 mg/dL confirms diabetes.

How to Prepare

Fast for 10-12 hours. Eat normally for 3 days before. You will need to stay at the lab for 2 hours.

Test Parameters & Normal Ranges

ParameterNormal RangeUnit
Fasting Glucose70 – 100mg/dL
2-Hour Glucose70 – 140mg/dL

Medically reviewed by Dr. Reena Bhaisare, Specialist – Clinical Pathology (DHA No. 06420338-001). Samples are analysed at Lifenity Genomic Laboratory DMCC, Jumeirah Lake Towers (JLT), Dubai, where Dr. Reena Bhaisare authenticates each report. About our laboratory and medical review

Frequently Asked Questions

Do I need to fast before my blood test?▼
It depends on the test. Tests like lipid profile and fasting blood sugar require 10-12 hours of fasting. Tests like CBC, vitamin D, and thyroid do not require fasting. Each test page on our website clearly states the fasting requirements.
How soon will I receive my results?▼
Most routine tests have results within 24-48 hours. Some specialized tests take longer. Each test page shows its expected turnaround time, and we will let you know when your report is ready.
Are your labs licensed?▼
Yes. LabTestUAE is operated by MEDIC (Medical Diagnostic and Imaging Centre Polyclinic), which holds Dubai Health Authority (DHA) health facility licence 0045588, with home healthcare endorsed as an additional service. The Sharjah laboratory in Al Nahda is licensed by the UAE Ministry of Health and Prevention (MoHAP), licence 8788. Samples are analysed at our partner laboratory, Lifenity Genomic Laboratory DMCC in Jumeirah Lake Towers, Dubai (DMCC commercial licence 867782), and every report is authenticated by its specialist clinical pathologist, Dr. Reena Bhaisare (DHA No. 06420338-001). You can check the DHA licence on the DHA Sheryan facility search.

Related Tests

Diabetes Screening (HbA1c)

AED 120·12 Hours

Fasting Blood Sugar (FBS)

AED 50·4 Hours

Random Blood Sugar (RBS)

AED 40·2 Hours

Post-Prandial Blood Sugar (PPBS)

AED 50·4 Hours

Medical Disclaimer: The information on this page is for educational purposes only and should not be considered medical advice. Always consult your physician or qualified healthcare provider for diagnosis and treatment. Test results should be interpreted by a qualified medical professional.