Home testing allows a sample to be collected in your home. This is then sent to a clinic or laboratory for testing. They should contact you with a result and the appropriate medical advice. This is not the same as home testing kits, where you are expected to read the results at home. These are currently validated for use in the UK. Once you have sent your sample to a laboratory or clinic and you are waiting for the result, you should follow the government guidance on self-isolation.