How to take a genetic test sample This page explains how to correctly take a genetic test sample and complete a genetic test request form, if you are using our genetic testing service. We recommend that you take the sample on a weekday and post it back on the sameday. The kits are letterbox sized and look like this : There are four steps to taking the sample... Step 1 : open the kit and read the instructions fully before you start Each test kit comes with full instructions and everything you need to take a sample. Please read the instructions carefully in full, before attempting to take a sample. The instructions are also available online here : genetic test sample instructions Step 2 : take the sample Following the instructions, take the test sample. You will need to almost fill the test tube provided. Make sure you push the cap on fully once it has been filled, to prevent spillages. Step 3 : complete the test request form Each kit comes with a sticky label to attach to the sample tube. Please complete your details on the label and attach it to the sample tube AFTER you have filled the tube. Then, take the test request form and complete the sections in GREEN shown below. There are only TWO sections to complete : Section 1 : please provide your forename, surname, title (Mrs, Mrs etc), gender (male or female : m/f) and date of birth (DOB) Section 2 : make a note of the date and time that the sample was taken Step 4 : place the request form and sample in the reply-paid envelope Place the labelled sample tube and your request form in the grey return envelope. You can also return any spare lancets in this envelope. Then seal the envelope, make sure the pre-paid sticker is attached to the front and post at any Royal Mail post box or Post Office counter. There is no charge or postage required to return the sample. And that's it!