Endocrine Testing
Glucose Tolerance Test (GTT) Pregnancy 100g Glucose Test
The Glucose Tolerance Test (GTT) during pregnancy helps detect gestational diabetes, ensuring the health of both mother and baby by assessing how the body processes glucose.
General information only: This page is not a diagnosis or personal medical advice. A qualified clinician should decide whether testing is appropriate and interpret results in context.
Review status: No completed medical review is recorded for this page.
At a glance
Plan your test
- Sample
- Multiple blood samples are required: a fasting sample, and samples drawn at 1, 2, and 3 hours after consuming a glucose solution. Each sample requires 1 mL of plasma collected in a Grey Top (Sodium Fluoride) tube.
- Results
- Confirm with the laboratory before booking.
- Preparation
- Overnight fasting (typically 8-12 hours) is required before the test. Confirm specific fasting instructions with your healthcare provider or the laboratory.
Payment: M-Pesa and card options can be confirmed during booking.
Insurance & government schemes
Is this test covered for you?
We help you verify whether the Glucose Tolerance Test (GTT) Pregnancy 100g Glucose Test test can be claimed against your insurer, employer scheme or a Kenyan government health scheme — before you book. Coverage depends on your plan, clinical indication and your provider's rules; final approval always rests with them.
Providers & schemes we can help you check
Government & public schemes
Eligibility and benefits follow the current rules of the Social Health Authority (SHA) and applicable government programmes.
Private insurers & employer schemes
Names shown for identification only — listing does not imply partnership or guarantee of coverage.
Have these ready when we check
- Insurer or scheme name & policy / member number
- A clinician's request / prescription for the test
- Pre-authorisation letter, if your plan requires one
Free coverage check
Ask us to verify your cover
Send your details and our claims team confirms what documents you need and whether pre-authorisation applies — usually the same working day.
Start with fit
Is this the right test for you?
The best test starts with a clear clinical question. These are common reasons a clinician or family may consider this test.
- ✓Screening for gestational diabetes during pregnancy.
- ✓Pregnant women with risk factors for GDM (e.g., obesity, family history of diabetes, previous GDM).
- ✓Monitoring glucose metabolism during pregnancy.
- ✓Evaluating symptoms potentially related to high blood sugar during pregnancy.
In plain language
What this test helps you understand
The test involves measuring your blood glucose levels at specific intervals after consuming a glucose solution. A baseline fasting blood sample is taken first, followed by the administration of a 100g glucose drink. Subsequent blood samples are drawn at 1, 2, and 3 hours after drinking the solution to monitor how your body processes the glucose load.
This test is recommended for pregnant women, especially those with risk factors like a history of diabetes, previous gestational diabetes, obesity, or a family history of the condition. It is typically performed between the 24th and 28th weeks of pregnancy, or earlier if risk factors are present. Discuss with your healthcare provider if this test is right for you.
Medical review status
Clinical review pending
A completed medical review is not recorded for this page. No clinician has endorsed the information shown here. Please discuss testing decisions with a qualified healthcare professional.
Meet the DNA Labs Kenya medical team →A simple process
What happens next?
You do not have to navigate the test alone. We help you move from question to next step.
Speak with us
We check the test and answer your questions before collection.
Give your sample
Choose home collection or a coordinated hub visit in Kenya. We explain whether this test uses a cheek swab or blood draw.
Understand your report
A counselor helps you understand the result and the next steps.
Choose your collection
Home collection or a lab visit
We will explain the sample, preparation, and next steps before anything is collected.
Home collection
Choose a coordinated visit at home or another convenient location. Our team confirms the appointment and sample requirements in advance.
Lab or hub visit
Prefer to visit a coordinated location? We can guide you to the right hub and explain what to expect when you arrive.
Ask about locations →Read your report
What common result terms mean
Questions people ask
Frequently asked questions
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Trust & transparency
Sources, standards & how this page is maintained
Standards & references
- ACMG/AMP technical standards for sequence variant interpretation
- ClinGen curation and gene–disease validity frameworks where applicable
- LOINC-coded reporting for interoperable results
- ISO 9001:2015 quality management; ISO 15189 accreditation in progress
Page provenance
- Last updated: September 27, 2026
- Medical review: not yet completed
- Written for patients & clinicians in Kenya; reviewed periodically against current guidance
Medical disclaimer: this page is general information, not a diagnosis or personal medical advice. Testing decisions and result interpretation should be made with a qualified healthcare professional.
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