Self-collection at home Karyotype Chromosome Analysis
Chromosome-level analysis of all 46 chromosomes - detects numerical changes (aneuploidies) and large structural rearrangements. Useful for couples investigating recurrent miscarriage or fertility issues.
What a karyotype shows about your chromosomes, explained by a genetic counsellor.
The logistics, simply.
Everything you need to know about shipping, blood draw, and suitability.
Kit delivery & logistics
Kit delivery & logistics
1. Your kit or booking link. Once you have watched the pre-test video and signed your consent form, your Tasso home collection kit is dispatched by next-day delivery - or, if you chose a Jeen Clinic Network blood draw or a home-nurse visit, we email you a link to book it. Delivery of the kit is free. Changed your mind? Return the kit unused within 30 days at no charge.
2. Easy returns. 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 at a Jeen partner clinic or by a mobile phlebotomist - or, with the Tasso Home Collection Kit, a blood sample you collect yourself at home and post back.
Test suitability
Test suitability
Karyotype analysis with Jeen Health is for adults. You do not need a GP referral or a pre-test consultation: genetic counselling is available on request, and is included if you tell us in the quick check before checkout that you are pregnant or that there are known genetic concerns in you or your family. The test analyses the chromosomes in your own blood sample - it is not a test of a pregnancy.
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.
Watch the pre-test video
Watch the short pre-test video we email you after you order - there is no appointment to book. Genetic counselling is available on request.
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.
Clinics available in Belfast, Birmingham, Bournemouth, Brighton, Bristol, Cambridge, Cardiff, Coventry, Derby, Edinburgh, Glasgow, Hull, Leeds, Leicester, Liverpool, London, Manchester, Newcastle, Nottingham, Oxford, Reading, Royal Tunbridge Wells, Southampton, Swindon, and York.
This map is served by Google Maps, which sets its own cookies on your device.
Partner clinics are also listed below. How we use cookies
How to collect blood with the Tasso device
The Tasso device is a small, single-use kit that collects a blood sample from your upper arm without a needle in your vein. A gentle button-press opens tiny channels just under the skin, and the sample is drawn into a collection tube. It takes a few minutes at home - no clinic visit, no phlebotomist. Follow the four steps below to collect your sample correctly.
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1Attach the collection tube
Take the green-capped collection tube from your kit and attach it to the base of the Tasso device until it clicks into place.
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2Place on your shoulder and activate
Press the device firmly onto your clean, dry upper shoulder so it sticks, then press the red button to begin collection. Keep it in place and let the tube fill.
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3Check the blood level, then remove the tube
The blood level must reach at least another 200 above the 400 mark on the tube - fill close to the top, but do not overfill. Once there is enough blood, remove the collection tube from the device.
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4Close, shake and prepare for return
Close the green cap securely and shake the tube gently to mix. Complete the label, seal the tube inside the biohazard bag, and return it using the prepaid packaging in your kit. Don't forget to include your completed test requisition form in the box.
Posting window - Monday to Wednesday only. So your sample reaches the lab fresh, post it back on a Monday, Tuesday or Wednesday. We cannot accept samples posted after 12pm on Wednesday - if you miss the window, hold your kit and post it the following Monday. Because of this window, Tasso results take around 7 working days longer than our other collection methods (about 17-21 working days in total).
Please note: the Tasso blood collection device may very rarely leave a permanent mark of approximately 2 mm on the shoulder. Although the mark is usually barely visible, please consider this before selecting this blood collection option.
Frequently asked questions.
How much does a karyotype test cost?
Where can I get a karyotype test?
How long do karyotype results take?
Why might I need a karyotype test?
Do I need a GP referral for karyotype testing?
What are the limits of a karyotype test?
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 consultationBefore we send you to checkout
Two quick questions so we can route you to the right service - if either applies, your order includes a consultation with a genetic counsellor first, before your sample is collected.
Your Tasso Home Collection Kit - please confirm: