NHS Lateral Flow Device User manual

A guide for healthcare
staff self-testing for
coronavirus using a
Lateral Flow Device (LFD)
This guide will help you remain well at work and keep your patients safe.
This test is suitable for healthcare workers.
1

This test is part of the government’s response to the pandemic and its
commitment to controlling infection and supporting our healthcare staff.
About this test kit
Overview
Here is a quick checklist for how to use the COVID-19 LFD tests. It is really important that you follow
these steps in the correct order.
Please follow the instructions in this booklet as this sets out how the test can be self-
administered. This has been agreed with experts and the manufacturer has been informed. Other
than taking a swab yourself from just inside both nostrils, the process is the same as set out in the
manufacturer’s instructions. If you still feel unsure about using this device after receiving training,
please contact your local NHS organisation.
You should test yourself twice a week, every 3 to 4 days, to fit your shift pattern – for example, every
Monday and Thursday or Wednesday and Sunday.
Prepare your test area and unpack your equipment
2
Take your swab sample (nasal swab only)
Process your sample and wait 30 minutes
Report your result
Read your result
Safely dispose of test equipment
Remember, store the test kit at room temperature – not in direct sunlight and
not in a fridge or freezer. Keep the test kit away from children.
If you receive a positive test, you must immediately report the result to your
organisation, either via your occupational health department, line manager or as
per local guidelines.
You will be asked to take a confirmatory PCR test; you and your household should
self-isolate according to HM Government Guidelines until the result of that test is known.
If your PCR test is positive you DO NOT need to self-test using the LFD for 90 days, from
the date you became positive.

3
Read the instructions carefully. Taking the test may feel a little
uncomfortable and unusual for most people.
You can see a demonstration of how to take the test by watching
this video: https://learninghub.nhs.uk/self-swab
Wash your hands thoroughly for 20 seconds, using soap and
warm water. This is so that you do not contaminate the test kit.
Now dry your hands.
Clean and dry a flat surface, where you will take the test.
Unpack the sealed test equipment for one test and place onto the
clean flat surface.
Check your contents. Ensure that the test device (called ‘antigen test cartridge’), swab and
extraction solution are not damaged, broken or out of date. Use the test kit checklist to make
sure you have everything. Use a clean, one inch deep lid or other small container (e.g. clean egg cup)
to keep the extraction tube upright and prevent spillage.
Swab, inside
sealed wrapper
Extraction
buffer bottle
Extraction tube Rapid test strip
Nozzle cap
Before you start
Make a note of the lot number on the Record of Testing sheet at the back of this
instruction guide. You can find the lot number on the outer package of the device.
Something damaged/broken/missing? If you have difficulties using the kit, if
something breaks or is damaged in use or if you have concerns about the performance of
the test, report these issues to the NHS organisation that provided you with the kit. Any
problems or concerns with this device can also be reported to MHRA
https://coronavirus-yellowcard.mhra.gov.uk/about

Prepare your test
Gently blow your nose into a tissue to get rid
of excess mucus.
Wash and dry your hands again (or use
sanitiser if this is available).
Check the swab in the sealed wrapper in front
of you. Identify the soft, fabric tip of the swab.
1
2
3
Soft tip Handle
Place the extraction tube in a small cup to keep
it upright.
Unscrew the extraction buffer pot.
Place 6 drops only of the extraction buffer into
the extraction tube. Try to avoid touching the
tube with the bottle. Reseal the extraction buffer for
future use.
4
5
66
drops
4

Take your swab sample
Open the package and gently take out the swab.
Do not touch the fabric end of the swab.
Put the swab gently into one nostril, you may feel
a slight resistance (insert about 1.5cm or about half
an inch). Roll the swab 10 times slowly along the
inside of the nostril. Remove the swab and repeat
10 times in the other nostril.
Now put the fabric end of the swab into the
bottom of the extraction tube. Press the swab head
against the edge of the tube with force, while
rotating the swab around the tube for 10 seconds
to squeeze as much fluid out as possible.
7
8
9
Take out the swab while squeezing the tube and
fabric end of the swab. Place the swab back into
the wrapper and dispose of it at home in your
household rubbish bin.
Press the nozzle cap tightly on to the tube to avoid
any leaks.
Turn the tube upside down and lightly squeeze two
drops onto the specimen well.
Place the Rapid Test Strip on a flat surface for 30
minutes. Set a clock, timer, or watch and wait 30
minutes to read the results. Do not read your results
until the 30 minute mark.
10
11
12
13
x10
10
secs
2
30
drops
min
Specimen well
5

Reading your results
Reporting your results
Leave your test for the full development time to get an accurate result. Do not
read your results until 30 minutes. If the test device is left to develop longer you
may receive a false positive result and you will need to repeat the test.
This indicates the test is negative.
Two lines – even faint lines – indicate the test is positive.
The test has failed and should be retaken.
Negative result
If your test result is negative: Record the information on the report sheet at the end of this
document or one provided by your organisation. If you have coronavirus (COVID-19) symptoms please
refer to NHS guidance online nhs.uk/conditions/coronavirus-COVID-19 as this test may miss some
positive cases.
If your test result is invalid: Record the information on the report sheet at the end of this document
or one provided by your organisation. Repeat the test with a new test kit.
If your test result is positive
You must also record your positive test results on the report sheet at the end of this document.
Positive result
Invalid result
6
You must immediately report your positive test results to your organisation –
either via your occupational health department, line manager or as per local
guidelines. Your NHS organisation will provide you with information on where
you need to go to have a confirmatory PCR test.
Until the results of this test are known, you and your household should self-isolate
according to HM Government Guidelines.
If your PCR test is positive you DO NOT need to self-test using the LFD for 90 days, from
the date you became positive.

Carefully dispose of the test device and equipment in your household rubbish.
If you need more help using the LFD test kit contact the NHS organisation that
provided you with the test kit.
If you can’t perform the test you should contact your NHS organisation’s helpline.
Disposing of your test
Need more help?
7
Coronavirus guidance and help: If you have coronavirus (COVID-19) symptoms or
have contracted coronavirus (COVID-19), please refer to NHS guidance online nhs.uk/
conditions/coronavirus-COVID-19
We are working with NHS Test and Trace to collect safety and performance data during
the roll out of COVID-19 testing initiatives. Problems with this device can be reported
directly to MHRA https://coronavirus-yellowcard.mhra.gov.uk/
If you have symptoms of coronavirus (COVID-19) and your condition gets worse, or you
do not get better after 7 days, use the NHS 111 online coronavirus service, 111.nhs.uk.
If you do not have internet access, call NHS 111. For a medical emergency dial 999.
Do not delay getting help if you are worried. Trust your instincts.
Disposal advice may be subject to change based upon future waste disposal guidance.