Our Methods

Understanding our testing

PCR Swab Test

Available as a home-kit or in-clinic test.

This test is a swab of the back of the mouth (tonsils and pharynx) and the nose to detect the presence of viral coronavirus RNA. 

It is considered the gold standard of coronavirus testing, as they are 100% sensitive to detecting the virus in a sample—even after levels have dropped below infectious levels. This is why many countries and airlines require foreign travellers to take a PCR test.

Though a PCR swab test is 100% sensitive, this is reliant on the quality of the sample taken. So if you plan on taking one of our at-home PCR test kits, please follow the swabbing instructions provided. This way, our lab can test the most accurate sample that you can provide.

PCR test results are usually delivered the day after we receive your sample, unless the sample requires a retest.

Not sure which coronavirus test you need? We've summed up your options below

Fit To Fly Certificate

Checks For Past Infection

Checks For Current Infection

X

X

X

X

X

X

X

X

Rapid 15 Minute Antigen Test

Only available when you visit our clinic.

The Abbott Panbio Antigen Rapid Test involves a swab of the nose or mouth and detects infectious coronavirus protein fragments.

It is ideal for quickly determining if you are at risk of spreading the virus, as it is 98.2% sensitive in detecting viral levels that are currently considered to be infectious (Ct values < 33). This is why rapid antigen tests are commonly used in workplaces, sports, film studios or any situations where people are closely gathered. As it can check whether anyone can unknowingly spread COVID-19 to someone else.

Rapid antigen test results are usually delivered within 15 minutes.

 
 

IgG Antibody Test

The IgG Antibody Test involves a finger prick blood sample and detects the presence of IgG antibodies—produced in response to being exposed to coronavirus.

 

It is the gold standard for antibody testing as it is 100% sensitive in detecting antibodies, 14 days after first symptoms. It has also has been PHE evaluated, FDA EUA approved, and is also used by the NHS.

IgG antibody test results are usually delivered within 1-2 days after we receive your sample, unless the sample requires a retest.

Available as a home-kit or in-clinic test.

 

IgM Antibody Test

The IgM Antibody Test involves a venous blood sample and detects the presence of IgM antibodies generated in response to recent exposure to coronavirus.

This test is best taken 30 days after exposure, as IgM levels drop more quickly than IgG levels exposure. Meanwhile, the IgG test is best taken if you believe you had contracted coronavirus many months ago.

The IgM antibody test results are usually delivered within 1-2 days after we receive your sample, unless the sample requires a retest.

Only available when you visit our clinic.

 

In Summary

If you want to know: 

  • If you are carrying the virus in your nose and throat at any level

  • If you are going to be allowed to travel to many restricted countries

 

Then it is the PCR test which you should have.

 

If you want to know: 

  • If you or your team are infectious right now

  • If you need results quickly

Then it is the Abbott Panbio Antigen Rapid Test that you need.

 

If you want to know:

  • If the fever and/or illness you had greater than 14 days ago—and months later—was likely to be COVID-19.

 

Then it is the IgG antibody blood test you need.

 

If you want to know:

  • If the fever and/or illness you had about 30 days ago was likely to be COVID-19.

Then it is the IgM antibody blood test you need.

 

If you have any questions or are still unsure about what test you need, please call 0333 577 0939 or email customerservices@claretdiagnostics.com, and our friendly team will guide you through your options.

Unit 6 Minerva Bus Centre, 58-60 Minerva Road, Park Royal, London, NW10 6HJ

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Tested by PHE/CQC approved UKAS accredited, ISO 15189 2012 laboratory