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Flu A/B & COVID-19 Combo Test

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Flu A/B & COVID-19 Combo Test

This test checks for: COVID-19, Flu A, Flu B

Before you start

You will need:

  • Your test kit
  • The swab provided
  • The extraction tube and dropper tip provided
  • A timer or your phone

Before starting:

  • Check the expiry date.
  • Do not use the test if the package is damaged or already open.
  • Keep the kit between 4–30°C.
  • Keep it away from direct light.
  • Do not mix parts from different test kits.
  • Wash and dry your hands.
  • Allow the test and everything you are using to reach room temperature before testing.

Step 1 — Collect your sample

  • Use the supplied nasal swab.
  • Choose the nostril with the most mucus.
  • Carefully insert the swab into your nostril.
  • Gently rotate the swab against the inside of your nose several times.
  • Remove the swab.
  • Use the sample straight away.

Step 2 — Prepare your sample

  • Stand the extraction tube upright in the holder provided.
  • Peel the seal off the top of the tube.
  • Put the swab into the tube so the tip sits in the buffer solution.
  • Move the swab up and down for at least 15 seconds.
  • Make sure the liquid does not spill.
  • Squeeze the tube around the swab while removing it.
  • Rotate the swab as you remove it to get as much sample as possible into the liquid.
  • Throw the swab away.
  • Attach the dropper tip securely to the tube.

Step 3 — Take the test

  • Open the test cassette.
  • Place it flat on a clean surface.
  • Turn the tube upside down.
  • Add 3 drops into the sample area marked S.
  • Start your timer.

Step 4 — Read your result

  • Read your result at 15 minutes.
  • Do not read the result after 20 minutes.

Result timing

Read your result at 15 minutes.
Do not read the result after 20 minutes.

How to read your result

Use the words and line positions together. Never rely on colour alone.

Negative

What it means
No Flu A, Flu B or COVID-19 was detected by the test.
What to do next
If you have symptoms or are still concerned, we recommend speaking to a healthcare professional about further testing.

Flu A detected

What it means
Flu A has been detected.
What to do next
Consider your symptoms and speak to a healthcare professional where appropriate.

Flu B detected

What it means
Flu B has been detected.
What to do next
Consider your symptoms and speak to a healthcare professional where appropriate.

COVID-19 detected

What it means
COVID-19 has been detected.
What to do next
Follow current health guidance and seek professional advice where appropriate.

Invalid

What it means
The test has not worked correctly.
What to do next
Repeat the test using a new kit.

Important information

  • A negative result does not completely rule out an infection.
  • If you have symptoms or are still concerned, we recommend speaking to a healthcare professional about further testing.

My Result Summary

Create a simple PDF record of the result you read, to keep or show a healthcare professional.

Created on your phone only. We don't ask for your name, we don't save your result and it is never sent to us or to any analytics.

Your result (as shown in the instructions)

This is a customer-generated record of a self-reported screening result. It is not a clinically verified medical certificate or a formal diagnosis. CareFree Kits has not seen or verified this result.

What to do next

Use the guide to distinguish the COVID-19, Flu A and Flu B result lines. Follow current NHS advice and seek healthcare support where appropriate. If negative but symptoms continue, ask about further assessment. No control line means invalid: repeat with a new kit. Seek advice if the lines are unclear.

A negative result does not completely rule out infection. Symptoms can have other causes and sample collection affects results. Follow current health guidance and ask for medical advice when concerned; do not delay urgent care while waiting for a kit.

Call NHS 111Email CareFree Kits

In an emergency, call 999.

Find Healthcare Support Near You

If you are concerned about your symptoms, contact your GP. If you need medical help now and are unsure what to do, contact NHS 111.

Find a GP NHS COVID-19 symptoms and advice
NHS 111 online Call NHS 111 Emergency 999

NHS 111 online is for people aged 5 and over. Call 111 for a child under 5. In an emergency, call 999.

CareFree Kits is a private service and is not affiliated with or operated by the NHS.

Important information

Important information for all tests.

  • Check the expiry date. Never use a test that is expired, damaged or already open.
  • Only use the swab and items supplied with your kit.
  • Use a timer and read your result at the exact time stated. Never read it late.
  • No C line means the test is invalid. Repeat it with a new kit.
  • A negative result does not always rule out infection. Testing too soon, or collecting too little sample, can affect it.
  • A positive or reactive result should always be followed up with a healthcare professional.
  • Still have symptoms or worried about a recent exposure? Speak to a healthcare professional, even if your result is negative.
  • Not sure what your result shows? Do not guess. Repeat the test with a new kit or speak to a healthcare professional.
  • Keep test kits away from children and pets, and dispose of used items safely.
  • CareFree Kits provides testing products and general information. Our tests do not replace professional medical advice or diagnosis.