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This month's special offers - up to 35% off selected tests!
This month's special offers - up to 35% off selected tests!

Frequently Asked Questions

Here you will find information on how the One Day Tests service works and answers to most commonly asked questions.

Using a Home Test Kit

Christmas Service Update - When should I post my blood sample?

Due to possible postage delays over the Christmas period, we ask that you do not post samples to us between Thursday 21st December and Monday 1st January.

If you require blood test results during this period please book a test at one of our local blood testing clinics

How do I prepare for and use my home test kit?

Detailed instructions for taking your blood sample, packaging it, and posting it to our laboratory are available here. This page also includes a step-by-step video guide to assist you in the process.

How should I post my blood sample?

Post your sample in any Royal Mail post box. If the post box has a 'priority' section, please use it to ensure quicker delivery. Don't worry if your post box does not have a 'priority' section, as we will still receive your sample. Priority post boxes simply mean we receive your sample faster.

When can I expect my test results?

Each test has an expected turnaround time listed on our website. The days specified apply to working days. The turnaround time is counted from when the sample is received in our lab, not from when you post it. You'll get an email confirming the receipt of the sample, starting the turnaround time. 

Note that the stated turnaround time is an average; results may be quicker or take longer, especially if they require additional processing or are sent to external labs. If results are delayed past the expected turnaround time, please contact us here.

Turnaround times for all our tests are here.

How can I contact One Day Tests?

If you have queries or concerns after the expected turnaround time for your test, you can find our contact details here.

Can I add more tests to my home kit order?

Unfortunately, for home kits, we cannot add more tests after your order is placed. The volumes are tailored based on the tests you have ordered, so it's not feasible to add additional tests once your kit is prepared.

Visiting One of our Clinics

Where to find our One Day Test clinics?

You can find the addresses, opening times, and additional information for our clinics here.

What should I expect on the day of my blood test at the clinic?

Please follow any special instructions for the test you ordered, such as fasting requirements, which can be found on the specific test page. Remember to stay hydrated before the test to facilitate a successful blood draw. On arrival, our team will give you a form to complete, and the phlebotomist will walk you through the procedure before drawing blood. 

If necessary, we may attempt the draw from a different site. After the blood draw, your samples will be sent to our lab for analysis. You’ll receive a confirmation email after this, starting the quick turnaround process.

What happens if I'm late for my appointment or need to reschedule?

If you're late, we'll try to see you as soon as a new slot is available. However, if you're more than 10 minutes late, we may attend to other clients first. You can reschedule at any time before your appointment without a fee through the link provided in your appointment confirmation email.

When can I expect my test results?

Each test has a specified turnaround time listed on our website, which applies to working days only. This time starts from when the sample is received in our lab, not when it's taken from you. You'll receive an email once your sample reaches the lab. 

While we strive for quick results, some tests may take longer, especially if they require additional processing or are sent to external labs. If results are delayed past the expected turnaround time, please contact us here.

Turnaround times for all our tests are here.

How can I contact One Day Tests?

If you have queries or concerns after the expected turnaround time for your test, you can find our contact details here.

How can I add more tests to my order?

For appointments at the clinic, you can add tests by speaking to the phlebotomist before your blood is drawn. If your sample is already at the lab, you can add tests by contacting us, but note that this will incur a £10.00 administrative fee, plus the cost of the additional test. 

This fee covers the process of locating your sample and rerouting it for additional testing.

Let's find the right test for you