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Can you help me with a different question about your kits?

Information about our kits

Written by Renee Parmar


Does it hurt?

Our autodraw device is virtually painless with no finger-pricking required. You can find out more about the device here.


Why is there gel in my tubes?

Each tube contains a gel which stabilises your blood sample for up to a week. You can find more info on our kit equipment here.


How much blood is needed in each tube?

You will need to fill your yellow tube to the 600 line as we need enough blood to ensure that we are able to process all results successfully.

If your tube has a purple top, you'll need to fill the tubes to the 250 line. Once you've done this, invert the sample as soon as possible.

The red tube needs to be filled to the 500 line.


I've only managed to fill up one tube out of the two?

If you received two tubes in your kit, both need to be filled and posted together as the lab will process it as a majority failure if you only send one tube. Pop your old tubes in the bin and drop us an email at hello@thriva.co and our team will arrange to send you a new one.


Does my kit expire?

Yes, we guarantee that our kits have a 2 month shelf life but in reality they have a much longer date of expiry. You can check the expiry dates on the side of the tubes.

To ensure your sample reaches the lab in time for analysis, please post it at least 7 days before the expiry date.


Looking for something else? Perhaps one of these articles might help:
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​How does my kit work?

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