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Medical information Clinical review pending

Genetic Testing

GJB2 Gene Deafness with Keratopachydermia and Constrictions of Fingers and Toes Genetic Test

This genetic test identifies variations in the GJB2 gene associated with hearing loss, keratopachydermia, and constrictions of fingers and toes. It uses Next-Generation Sequencing (NGS) technology.

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.

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Counselor guidance included Confidential handling Kenya-wide coordination

At a glance

Plan your test

Sample
A blood sample is required for this test. Confirm specific collection requirements with the laboratory before booking.
Results
Confirm with the laboratory before booking.
Preparation
No special preparation is typically required for a blood draw. However, confirm with the laboratory for any specific instructions.
Test priceKSh 40,000

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 GJB2 Gene Deafness with Keratopachydermia and Constrictions of Fingers and Toes Genetic 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.

Talk to a claims advisor

Providers & schemes we can help you check

Government & public schemes

SHIF — Social Health Insurance Fund Linda Mama EduAfya NHIF (legacy cards)

Eligibility and benefits follow the current rules of the Social Health Authority (SHA) and applicable government programmes.

Private insurers & employer schemes

Jubilee Health AAR APA Britam CIC Madison Resolution Pioneer Minet Old Mutual GA Life Heritage + other licensed insurers

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.

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Used only to process your coverage check — see our Privacy Policy. Verification support is free and does not guarantee your provider will pay.

01

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.

  • ✓Individuals with hearing loss.
  • ✓Patients with keratopachydermia.
  • ✓Individuals with constrictions of fingers or toes.
  • ✓Family history of hearing loss or related conditions.
  • ✓Genetic counseling for family planning.
02

In plain language

What this test helps you understand

This test helps identify the genetic cause of hearing loss and associated conditions like keratopachydermia and digital constrictions, aiding in diagnosis, prognosis, and genetic counseling.
This test analyzes the GJB2 gene to identify genetic variations linked to hearing loss, keratopachydermia (thickening of the cornea and skin), and constrictions of the fingers and toes. It utilizes advanced Next-Generation Sequencing (NGS) technology for a comprehensive analysis. Understanding these genetic factors can provide valuable insights for diagnosis and management.
03

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 →
04

A simple process

What happens next?

You do not have to navigate the test alone. We help you move from question to next step.

1

Speak with us

We check the test and answer your questions before collection.

2

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.

3

Understand your report

A counselor helps you understand the result and the next steps.

05

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 →
PreparationNo special preparation is typically required for a blood draw. However, confirm with the laboratory for any specific instructions.
SampleA blood sample is required for this test. Confirm specific collection requirements with the laboratory before booking.
MethodologyNext-Generation Sequencing (NGS) is used to analyze the GJB2 gene.
PrivacyYour sample and report are handled confidentially. Ask the team how your information is stored and shared.
This test analyzes specific regions of the GJB2 gene. It may not detect all possible genetic variations. Results should be interpreted in the context of clinical findings and family history. Confirm with the laboratory before booking.
06

Read your report

What common result terms mean

PositiveA finding was identified. Your clinician or counselor will explain what it means for your care.
NegativeThe specific finding tested for was not identified. It does not rule out every possible cause.
VUSA variant was found, but current evidence is not enough to classify it. Your counselor can explain follow-up.
07

Questions people ask

Frequently asked questions

The GJB2 gene provides instructions for making a protein important for hearing. Mutations in this gene are a common cause of genetic hearing loss.
Keratopachydermia is a condition characterized by thickening of the cornea (the clear front part of the eye) and skin, sometimes associated with GJB2 gene mutations.
These are physical abnormalities where the fingers or toes are narrower in certain areas, which can be associated with specific genetic syndromes, including those linked to GJB2.
Individuals with hearing loss, keratopachydermia, or finger/toe constrictions, especially with a family history of these conditions, may benefit from this test.
A healthcare professional, often a genetic counselor, will help interpret the results in the context of your medical history and symptoms.
08

Collaboration

Open for partnership with hospitals, clinics, doctors & researchers

Whether you are referring patients, building a research programme or supporting students, we work as an extension of your team — with responsive communication and clear scientific standards.

Hospitals & clinics

Referral pathways, coordinated sample logistics and shared reporting that fits your clinical workflow.

Doctors & specialists

LOINC-coded reports, ACMG-based variant classification and a direct scientific line for complex cases.

Research institutions

Sanger sequencing, NGS panels and custom assays — with project design support, batch pricing and agreed turnaround commitments.

Students & academic projects

Discounted laboratory services for college, master's and PhD research projects — including proposal guidance and cost-effective batch testing.

Explore partnerships
09

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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