Customer Service

Thank you for purchasing a SELFCheck self test kit. Please take a few moments to read this page and watch the videos BEFORE starting your test.

Your test kit has been assembled at our UK laboratories from high quality components, the same as those used in hospitals and clinics. User trials assessed by independent doctors and scientists have shown that your test will give you reliable results and the tests are easy to use.

Proven technology

The technology used in most SELFCheck tests is based on that used in lateral flow rapid test devices such as pregnancy tests for over 30 years. Nevertheless, it is essential that you read both sides of the instruction leaflet before touching the components or starting your test and carefully follow the procedure as written.

About our Quality Systems

Our laboratories are audited twice a year by independent UKAS accredited external auditors to ensure that our SELFCheck kits are assembled according to UK and international medical device standards ISO13485 and ISO9001.

Helpful hints

Most SELFCheck blood test users find their test easy to use. Here are some helpful hints to help you get the most from your test kit.

  • Take time to read both sides of the instruction leaflet before touching any of the components or starting your test

The finger pricker (lancet)

  • DO NOT press the trigger lever until the lancet is firmly pressed against your finger tip
  • You must press the finger pricker FIRMLY against your finger tip as you press the trigger

The finger prickers provided with the SELFCheck tests are high quality lancets used in hospitals and clinics. The lancets are single use (for hygiene reasons) so once the trigger lever on the lancet has been pressed it cannot be reused.

A spare lancet has been provided but should not be needed if you have followed the instructions as written.

Use the second lancet if you need to collect more blood but please do remember to press the finger pricker firmly against your finger tip and then press the trigger lever. If you don't press the lancet firmly against your finger tip you won't puncture the skin sufficiently to produce a large blood drop.

Here is a video from the manufacturer of the lancet showing how it is used in clinic.

The pipette

  • You will find the pipette inside the foil pouch with the test cassette

The pipette is really just a hollow plastic tube which has been cleverly designed to collect the required amount of blood - it will automatically stop filling when enough blood has been collected for your test. The filling of the tube depends on capillary action and will always work providing the instructions are followed as written.

Important points - hold the pipette gently by the bulb when collecting the blood from your finger tip - but don't squeeze the bulb, it will fill automatically by capillary action.

  • Press firmly with the lancet - this will produce a large blood drop and allow you to collect your sample quickly and easily
  • If blood starts to smear across your finger tip then wipe away the blood with a tissue and gently squeeze again
  • Hold the pipette HORIZONTAL to the blood drop (blood won't flow 'up-hill')

Once the blood has been collected to the black line on the pipette it will stop filling. Just squeeze the bulb of the pipette to eject the blood sample into the SAMPLE well on the test cassette.

Here is a video showing how the blood is collected and added to the test cassette. An alternative way is to hold your finger with a large (ladybird size) drop of blood hanging down from your finger tip and, holding the pipette horizontal to the drop to collect it. The important thing is to press firmly with the lancet so that you get good blood flow.

Reasons for an invalid result

Your test has been designed, developed and manufactured according to a strict quality assurance system for medical devices and assembled from high quality components - just like those used in your hospital laboratory. It is unlikely that an invalid result is due to a fault with the test.

The most common reasons for an invalid result, where the control line doesn't appear, are;

  • not enough drops of diluent have been added - this may have happened if a bubble was dispensed instead of one of the drops. If you have an invalid result, simply add a further 2 drops of the diluent and wait the amount of time described in the instructions
  • Not adding enough or adding too much blood
  • Adding the diluent to the result window by mistake

It is very rare for SELFCheck tests to malfunction but if you do have a problem our technical team is here to help you get a result.

If you are contacting us about an invalid result please add a further 2 drops of diluent to the Sample well - if you do not get a result after the time specified in the instructions please email a photo of your test result to our technical services -