How to do your test

Blood test instructions

Here’s your step-bystep guide on how to collect your sample. Follow our video and written guide.

Three main steps

  1. Prepare your kit
  2. Collect your sample
  3. Label and post it

Before your start

Drink a glass of water 30 – 60 mins before taking your sample

Fast for at least 8 hours for the most accurate results

Take your sample Mon – Thurs so that your sample will be delivered to the lab by the next day

Use a low table to take your sample

You’re ready to do your test!

Follow along with our medical director, Dr. Earim

1. Prepare your kit

Drink a glass of water 30-60 mins before taking your sample

Prepare your kit laying down all the equipment you’ll find in your box, and familiarise yourself with the instructions.

Get your blood flowing

Soak your hand in warm water for 2-3 minutes. This ensures that the blood flow to your hand is really good.

To get your blood pumping we recommend some movement for 1 minute, like running on the spot, star jumps, or swinging your arm around.

2. Collect your sample

You can stand or sit during the whole process, but keep your hand low, near your lap. Gravity will help your blood flow, and makes it much easier collecting your sample.

Prepare your kit laying down all the equipment you’ll find in your box, and familiarise yourself with the instructions. It normally helps to stand the tubes in the plastic transport case (there are some round holes built into the case).

This is how much you will have to fill the tubes:

  • Purple tube: fill to the line marked 250
  • Yellow tube: fill to the line marked 600

If you have both a yellow and a purple bottle, start filling the purple tube first and make sure to invert it 10 times as soon as you finish collecting your sample.

Not all tests have two tubes. If you have only one do not worry, it means only that one is needed for your test.

Clean your finger with the alcohol wipe.

Take your lancet and remove the top by twisting it.

It’s important to prick the corner of your fingertip as it’s less sensitive and makes it easier to direct your blood.

Put your hand on a hard surface, so that it doesn’t move when you push the lancet down. Then place the lancet on the top corner of the fingertip.

Push the lancet down until you hear a click.

Not all tests have two tubes. If you have only one do not worry, it means only that one is needed for your test.

Once your blood is flowing, tap or scrape the drops of blood against the top of the tube to help guide it in.

It should take no more than two minutes to fill a tube.

Immediately after, put the cap on the tube and press until you hear a click. Gently swirl and turn the tube upside down at least 10 times.

Remember it’s important to mix the purple tube first (if you have one)

3. Label and post it

Prepare your kit laying down all the equipment you’ll find in your box, and familiarise yourself with the instructions.

Now fill in the lab request form with the following:

  • In the middle complete the date and time you took your sample.
  • Complete both labels at the bottom with the date and time

Wrap the labels at the bottom of the form around the tubes and stick the ends together onto themselves like an airport luggage tag or a flag.

Before posting, make sure you have included:

  1. Completed return form
  2. Labelled tube(s) placed inside the plastic case
Make sure to post your sample on the same day. Your results should be with you in a few days.

Post your sample in a priority postbox, as they’re collected from every day. Find your nearest priority postbox here.