Extended 5-Hour Glucose Tolerance Test (OGTT) in UAE | 150 AED | DHA Licensed

Executive Summary & Core Metrics

Test Overview & Methodology

Extended 5-Hour OGTT Diagnostic Profile

The Extended 5-Hour Glucose Tolerance Test (OGTT) precisely evaluates how your body metabolizes glucose over an extended period, helping detect diabetes, impaired glucose tolerance, and gestational diabetes with greater diagnostic depth than the standard 2-hour test. Overnight fasting is mandatory. Avoid the following for 48 hours: oral hypoglycemics, insulin secretagogues, systemic corticosteroids, loop diuretics, beta-blockers, and high-dose salicylates (unless otherwise directed). Collection requires a fasting baseline plasma (2 mL in Grey-Top Sodium Fluoride tube) and a corresponding 10 mL urine aliquot. After glucose ingestion (82.5 g glucose monohydrate in adults, or 1.92 g/kg in children), additional plasma and urine samples are drawn at 30 min, 1 h, 1.5 h, 2 h, 2.5 h, 3 h, 4 h, and 5 h. All tubes and vials must be labelled with draw time and patient ID. Samples are transported refrigerated or frozen via ISO-certified cold-chain logistics.

Physician Insight & Safety Protocols

Patient FAQ & Clinical Guidance

1. How should I prepare for the Extended 5-Hour Glucose Tolerance Test?

You must fast overnight (at least 8–12 hours, water only), avoid smoking and vigorous exercise for 12 hours prior. Please consult your doctor about any medications that may need to be temporarily withheld.

2. Why are both blood and urine samples collected at multiple times?

This combination captures dynamic glucose renal spillage and hormonal counter-regulation, offering a complete metabolic profile not visible from a single blood draw.

3. Can I take my routine medications or supplements before the test?

Only those explicitly approved by your doctor; many drugs (corticosteroids, beta-blockers, thiazides) alter glucose curves and must be temporarily withheld under medical supervision.

4. What happens if I feel faint or nauseous during the test?

Our trained phlebotomist will monitor you throughout. Inform them immediately if you feel unwell; they can pause the procedure and provide appropriate care.

5. When will I receive my results and how are they interpreted?

Results are reported within 24 hours. A DHA-licensed physician will provide a complimentary telephonic post-test interpretation to explain your glucose curve and next steps.

UAE Regulatory & Data Privacy Adherence

Clinical & Logistical Metadata