Private OGTT

OGTT – £200
Plus, Phlebotomy £35 or Private GP Consultation £120

An Oral Glucose Tolerance Test (OGTT) measures how well your body processes glucose (sugar).

At MUMS, we offer the 75 g, 2-hour Oral Glucose Tolerance Test, which may be used during pregnancy to diagnose gestational diabetes, or in non-pregnant patients when investigating impaired glucose tolerance or diabetes.

Gestational diabetes

Gestational diabetes is high blood sugar (glucose) that develops during pregnancy and usually resolves after your baby is born. It can occur at any stage of pregnancy but is more common during the second or third trimester.

During pregnancy, your body needs to produce additional insulin to help control your blood glucose levels. Gestational diabetes develops when your body is unable to produce enough insulin to meet these increased needs.

An OGTT for gestational diabetes is usually performed between 24 and 28 weeks of pregnancy. If you have previously had gestational diabetes, you may be advised to have testing earlier in pregnancy and again at 24–28 weeks if the earlier result is normal.

Factors associated with an increased risk of gestational diabetes include:

• BMI above 30 kg/m²
• Previous gestational diabetes
• Previous baby weighing 4.5 kg or more at birth
• A parent, brother, or sister with diabetes
• Family origin associated with a higher prevalence of diabetes
• Being over 40 years of age.

What happens during an OGTT?

You will need to fast for 8 hours before your appointment. During this time, you should not eat and should drink plain water only.

When you arrive at MUMS:

1. We will take a fasting blood sample.
2. You will drink a solution containing the equivalent of 75 g of glucose.
3. You will then rest at MUMS for approximately 2 hours.
4. During this time, you must not eat, chew gum, smoke, vape or use nicotine products. You may drink plain water.
5. A second blood sample will be taken 2 hours after the glucose drink.
6. Both blood samples will be sent to our laboratory for analysis.

Please tell us about any prescribed or over-the-counter medication you take when booking your test. Do not stop prescribed medication unless advised to do so by your doctor.

If you feel unwell or vomit after drinking the glucose solution, please tell a member of the MUMS team immediately as this may affect the test and it may need to be stopped or repeated.

Results are usually available the following day.

Having your results interpreted

You can have your OGTT performed by one of our experienced phlebotomists for an additional £35.

Please note that a phlebotomy appointment covers taking the blood samples and does not include clinical interpretation of your results.

Alternatively, you can arrange your test through one of our Private GPs (£120 consultation). Your GP can assess why the test is required, arrange the appropriate testing and discuss your results with you when they are available.

If another doctor, consultant, or midwife has requested your OGTT, your results can also be reviewed by the clinician responsible for your care.

Call us on 0121 704 2669 – Our friendly team will book this for you.

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