How Our Blood Testing Service Works


Choose the test that is right for you

See all tests here. If you are unable to find what you are looking for on our website, our team is happy to help. Contact us >


Choose blood sample collection method & have blood collected

Please ensure you have your sample collected within 3 months of ordering a test:

Blood Test Centre

You can walk in and have your blood sample collected in the Blood Test Centre at St Thomas’ Hospital in London provided you have ordered your test online first. No appointment is needed and there is no extra charge for this service.

The Test Centre is open 7.30am - 5.45pm, Monday - Friday, and located at St Thomas’ Hospital, Ground Floor, South Wing, Westminster Bridge Road, London, SE1 7EH. Typical wait time is less than 15 minutes. For the Viapath Nutris service we recommend visiting the centre between 8am - 4pm.

See hospital map & directions

Private Blood Tests London
Postal Pack

We understand that not everyone can come to London. You can ask your local GP surgery or make arrangements to have your blood collected in a clinic of your choice and post your blood samples back to us. We will send you a collection kit with blood sample tubes, instructions, and pre-paid 1st class envelope for returning your blood samples to Viapath Nutris.

Please note that your blood samples MUST be collected by a qualified professional, and that by choosing this option, you are responsible for any third-party phlebotomy charges.

Blood Test Pack
Home Testing Kit

Our newly available dried blood spot test kit contains everything you need to collect your sample from the comfort of your own home.

We will post you a collection kit, instructions and a pre-paid 1st class envelope for returning your blood samples to Viapath Nutris.

See home test kit instructions

Vitamin D Home Blood Test Kit

Access your report

Log in to your secure Viapath Nutris account to track the progress of your sample. You will receive an email notification when your laboratory report is available to view online.

Your report will include a numeric result and personalised commentary by a healthcare scientist to explain the result.