A key difference between lateral flow tests and PCR tests is lateral flow tests are used to find out if you have been exposed to the virus, even if you don’t have symptoms. PCR tests are used to check for a COVID infection if you do have symptoms or after a positive lateral flow test.
A PCR test has to be taken to a laboratory for analysis, so these results take longer. A self-test kit will give you results within 15-30 minutes (depending on the brand you use). PCR is the most accurate way of testing for COVID-19, but lateral flow home test kits are a great way of confirming infection or giving you peace of mind before trips, outings, or visiting friends.