Skip to main content
Medical information Clinical review pending

Genetic Testing

PNP Gene Immunodeficiency Due to Purine Nucleoside Phosphorylase Deficiency Genetic Test

Genetic test using Next-Generation Sequencing (NGS) to detect mutations in the PNP gene, associated with purine nucleoside phosphorylase deficiency, a cause of severe immunodeficiency. Early diagnosis is important for management.

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.

Ask a question
Counselor guidance included Confidential handling Kenya-wide coordination

At a glance

Plan your test

Sample
Blood sample (usually collected in an EDTA tube). Confirm specific requirements with the laboratory before booking.
Results
Confirm with the laboratory before booking.
Preparation
No special preparation is typically required for this blood test. 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 PNP Gene Immunodeficiency Due to Purine Nucleoside Phosphorylase Deficiency 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.

+254

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.

  • ✓Suspected PNP deficiency based on clinical symptoms (e.g., recurrent infections, failure to thrive).
  • ✓Family history of PNP deficiency or related immunodeficiency disorders.
  • ✓Confirmation of diagnosis in individuals with suggestive clinical findings.
  • ✓Genetic counseling and family planning for affected families.
  • ✓Prenatal diagnosis in high-risk pregnancies.
02

In plain language

What this test helps you understand

This test helps diagnose Purine Nucleoside Phosphorylase (PNP) deficiency, a rare genetic disorder causing severe combined immunodeficiency (SCID). Identifying the specific gene mutations aids in confirming the diagnosis, understanding the genetic basis of the condition, and guiding appropriate medical management and counseling.
The PNP Gene Immunodeficiency NGS Genetic DNA Test is a diagnostic tool used to identify purine nucleoside phosphorylase (PNP) deficiency. This is a genetic condition where the body lacks sufficient PNP enzyme, leading to a buildup of toxic substances and potentially severe immune system problems.

This test utilizes advanced Next-Generation Sequencing (NGS) technology to analyze the PNP gene in detail. It looks for specific mutations (changes) in the gene that cause the deficiency. Identifying these mutations is crucial for diagnosing PNP deficiency accurately.

Early diagnosis allows for appropriate medical management, which can significantly improve health outcomes for individuals affected by this condition. This test is particularly relevant for individuals with symptoms suggestive of immunodeficiency or a family history of the disorder.
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 this blood test. However, confirm with the laboratory for any specific instructions.
SampleBlood sample (usually collected in an EDTA tube). Confirm specific requirements with the laboratory before booking.
MethodologyNext-Generation Sequencing (NGS) of the PNP gene.
PrivacyYour sample and report are handled confidentially. Ask the team how your information is stored and shared.
This test detects mutations within the PNP gene. It may not detect all possible mutations, such as large deletions or rearrangements not covered by the sequencing panel. A negative result does not completely rule out PNP deficiency if clinical suspicion remains high. Results should be interpreted in conjunction with clinical findings and other relevant tests.
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

Purine Nucleoside Phosphorylase (PNP) deficiency is a rare genetic disorder where the body lacks a key enzyme needed for proper immune system function, leading to severe immunodeficiency.
Individuals with symptoms like recurrent infections, failure to thrive, or a family history of immunodeficiency should discuss testing with their doctor.
The test uses advanced NGS technology for comprehensive analysis. However, like all genetic tests, it has limitations and should be interpreted by a healthcare professional alongside clinical information.
Your doctor will discuss the results with you. Genetic counseling may be recommended to understand the implications for your health and family.
Insurance coverage varies. Please check with your insurance provider regarding coverage for genetic testing.
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.

Keep exploring

Related tests

View all tests →
Chat on WhatsApp