A COVID-19 rapid lateral flow test shows you the result on a device that comes with the test.
How to do an NHS COVID-19 rapid lateral flow test
How you do the test depends on the test kit you’re using.
Rapid lateral flow tests require either a:
- throat and nose swab
- nose swab only
The test you have might be different to one you've done before so it's important to read the instructions carefully before you do the test.
Check the expiry date before you do the test
Rapid lateral flow tests have expiry dates so you know when to use them by.
Do not use out-of-date tests. Use a test from a box which is still in date.
Before taking the swab
- wash your hands with soap and water or use a hand sanitiser
- clear, clean and dry a flat surface then lay out all the items in the test kit
- if your test does not come with a pre-filled tube, fill the tube with the liquid provided
- place the tube in the tube holder
- blow your nose
- wash your hands again or use a hand sanitiser
Taking the swab
If your test requires a throat swab:
- open your mouth wide and rub the swab over both your tonsils (or where they would have been) at the back of your throat. Do this 4 times on each side
- using the same swab, wipe the inside of your nose as set out in the test kit instructions
If your test requires a nose swab only:
- use the swab to wipe the inside of your nose as set out in the test kit instructions
Completing the test
- put the end of the swab into the tube so it's in the liquid and swirl the swab around as directed in the test kit instructions, then close the lid
- squeeze the liquid from the tube onto the test strip
- check the waiting time in the instructions that came with your test kit
- wait for the time shown in your test kit instructions
- read your result
Do not leave it longer than the waiting time specified in the test kit instructions as this may affect the result.
Find more information on how to do a COVID-19 rapid lateral flow test at home on GOV.UK, including videos , step-by-step guides, easy reads and information in other languages.
Reporting your result
Report your result, whether it is positive, negative or void, every time you do an NHS rapid lateral flow test.
If you need help to do the test
You can call 119 (free from mobiles and landlines) if you need extra support.
Lines are open:
- Monday to Friday 9am to 5pm
- Saturday 9am to 1pm
- Closed on Sunday and bank holidays
119 provides support in 200 languages.
SignVideo is a free online British Sign Language interpreter service for 119.
You can use the free Be My Eyes app to get help from trained NHS Test and Trace staff. Download the app, go to 'Specialized Help' and select 'NHS Test & Trace' in the Personal Health category.
If you have severe sight loss, you might find it easier to get help to do the test from a friend or family member.