1 / 6 CGT - Igenomix Carrier Genetic Test
CGT (Carrier Genetic Test) is Igenomix's premium whole-exome carrier-screening panel - clinically reporting findings across 1,993 genes in males and 2,057 in females (including 66 X-linked), covering more than 2,200 inherited recessive and X-linked conditions. Blood-sample collection at any of our 200+ collection points across the UK. Every order includes a 30-minute pre-test consultation with a specialist genetic counsellor and results within 25 working days.
Igenomix whole-exome sequencing - 1,993 (M) / 2,057 (F) genes, >2,200 conditions
30-minute pre-test genetic counselling included
Blood draw at any of our 200+ collection points (+£40; home-nurse visit +£65) (+£40; home-nurse visit +£65)
Results in 25 working days, reviewed by your genetic counsellor
CGT - the whole-exome carrier screen
Standard carrier screening looks at a fixed panel of 1,008 genes. CGT (Carrier Genetic Test) from Igenomix uses whole-exome sequencing - reading the protein-coding regions of the genome and reporting clinically across 1,993 genes (male) or 2,057 genes (female, including 66 X-linked).
CGT is for people and couples who want whole-exome carrier screening before conceiving.
What's included
- Whole-exome sequencing reported across 1,993 (M) / 2,057 (F) genes covering >2,200 inherited recessive and X-linked conditions
- Complementary deep sequencing of difficult regions: CYP21A2, HBA1/2, SMN1 (male & female); DMD, FMR1, F8 (female only)
- 150× mean depth - well above the standard for clinical-grade variant detection
- 30-minute pre-test consultation with our specialist genetic counsellor
- Blood sample drawn at any of our 200+ collection points, via a home nurse visit, or at a phlebotomist you arrange yourself
- Results in 25 working days from lab receipt, reviewed by your genetic counsellor
- High-risk follow-up consultation included if results return a clinically-actionable finding
If you're undecided between CGT and our standard Carrier Screening, our genetic counsellor will walk you through the trade-offs on your pre-test call - there's no commitment to either test until that conversation.
What CGT cannot tell you
CGT is a carrier screening test, not a diagnosis. It reads the protein-coding regions of the genome (with extra analysis of a small number of difficult regions) and reports on a curated set of 1,993 genes (male) or 2,057 genes (female), so it does not cover every gene and may not detect variants outside the regions it reads. A negative result lowers, but does not remove, the chance that you or your partner carry a recessive or X-linked condition, and it cannot say whether a pregnancy is affected. Results can include variants of uncertain significance. Your genetic counsellor will explain what your result does and does not mean.
The logistics, simply.
Everything you need to know about shipping, blood draw, and suitability.
Kit delivery & logistics
Kit delivery & logistics
1. Get your kit from us. Free delivery of your test kit, dispatched by next-day delivery after your included 30-minute genetic counsellor consultation (video or phone) and once your test choice is confirmed. Changed your mind? Return the kit unused within 30 days at no charge.
2. Posting your sample back. After sample collection, send your sample in the pre-paid bag to the nearest depot (details in your email). Turnaround is counted in working days from when your sample reaches the laboratory.
Sample / draw options
Sample / draw options
Blood draw : Standard venous blood draw, performed at a clinic or by a mobile phlebotomist.
Test suitability
Test suitability
Genetic testing with Jeen Health is suitable for adults who have completed a pre-test consultation with one of our genetic counsellors - in clinic, over video, or by phone.
Genetic testing with Jeen Health is only available to individuals aged 18 and over.
Three steps. That's it.
Simple, clinician-supported steps to take your test with Jeen.
Talk to a clinician
Book your included 30-minute consultation with our genetic counsellor (video or phone). Confirm the test that's right for you.
Consent + collect
Complete your consent form online, receive your kit, and collect your sample at home or via a clinic of your choice.
Results + follow-up
Your results are reviewed by your genetic counsellor. We share them with you securely, and book a follow-up consultation with onward referrals if your result is high-risk.
Compare every option we offer.
Price, turnaround and coverage side by side.
200+ collection points across the UK
If you choose a clinic blood draw, you can pick a collection point near you on the map.
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Frequently asked questions.
How much does CGT cost?
How is the sample for CGT collected?
How long do CGT results take?
What's the difference between CGT and standard Carrier Screening?
Do I need a GP referral for CGT?
Resources
- 📄 CGT panel comparison (2024) - full breakdown of the Bank / Plus / Exome / SYNC tiers, gene counts, complementary tests, and turnaround times (Igenomix, PDF)
- 📄 CGT patient guide (2022) - what CGT is, who it's for, and how to interpret the results (Igenomix, PDF)
Methodology
Whole-exome sequencing performed by Igenomix UK. 150× mean depth across coding regions. Variant interpretation follows ACMG/AMP 2015 guidelines and ACOG carrier-screening recommendations. Complementary deep sequencing of difficult regions (CYP21A2, HBA1/2, SMN1; plus DMD, FMR1, F8 in female samples).
References
- Capalbo et al., Eur J Hum Genet (2021) - clinical utility of expanded carrier screening
- Archibald et al., Genet Med (2018) - population carrier frequencies; 88% of carriers have no family history
- ACOG Committee Opinion (March 2017) - carrier screening for genetic conditions
Talk to a specialist.
Our team is here to help. Whether you're curious about testing, your results, or what's right for you - we're a message away.
Book a consultation