Glucose Tolerance Test

At REMEDI HEALTH in Winchester we have a range of tests that an be done to help understand your risk of developing insulin resistance or having diabetes.

In addition to fasting and random glucose tests and HbA1C, we can undertake a Glucose Tolerance Test (GTT), also referred to as the Oral Glucose Tolerance Test (OGTT). This test is used to determine whether the body has difficulty metabolising intake of glucose and/or carbohydrate.

Book a Glucose Tolerance Test

Please contact the clinic to book your glucose tolerance test as there are several stages to the process. This includes an initial fasted glucose pinprick and then a blood draw. You will then be asked to drink a specific amount of glucose (we make this up for you), and then have a further blood test after 2 hours.

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Safe, private clinic

Our beautiful award-winning clinic is in the centre of Winchester and we look forward to welcoming you. Keeping you and others safe is our priority and so if you are unwell, please let us know in advance.

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Trained clinicians

Your appointment will be with a trained clinician in one of our private consultation rooms at our clinic in Winchester. You will be asked to come back after just under 2 hours for a further blood test.

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UKA accredited lab

We only use UKAS accredited laboratories for our testing which means that you can be confident that your test is quality assured and the report will be accepted for official purposes.

About this service

We will prepare you for the test beforehand with instructions on what you should and should not do.

We will perform a blood glucose finger-prick or urine test at the beginning of the process and then perform a blood draw for fasting glucose. We will then ask you to drink a specific amount of glucose. This will be made up for you. We will repeat a blood glucose test 2 hours after the glucose challenge.

Your results will be interpreted and sent to you so that you can discuss with your doctor.

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About the Glucose Tolerance Test

This is a test which measures your blood sugar levels in response to a set dose of sugar (glucose) to check for diabetes.

Diabetes is a condition where the body is unable to process sugar properly. The amount of sugar in the blood is controlled by a hormone called insulin, which is produced by the pancreas (a gland behind the stomach).

The test measures the amount of glucose in your blood before and after taking a glucose drink. The test will take around three hours (even though it’s known as a two-hour OGTT).

You will be required to stay close by the clinic during this time in order to give blood samples.

Before your Test

You must not eat or drink anything apart from water from midnight before the test.

It’s a good idea to plan on what you will do in the periods of waiting between blood tests and you must not eat or drink anything inbetween them.

During your Test

First we will take a blood sample for glucose (sugar).

You will then be given a sugary drink.

Two hours after this, another blood sample will be taken.

During the test you should rest and avoid moving around too much as exercise could affect your results.

Can we help you?

Our team are standing by to help you with any questions or queries that you may have. We can advise you on the best test, product or service for your requirements.