• Review • COVID-19 PCR Timelines

Review: COVID PCR Timelines - September 2021

Posted: 03/09/2021

Performance summary

A summary of Mayfield Clinic's COVID testing timelines for September 2021


of same day tests returned before midnight.


of next day tests returned on time

8 hours

average time between sample and result

We know reliability is vital for travellers procuring a PCR testing service. With this in mind, starting from July 2021 we release our PCR COVID turnaround time data. This is designed to provide a new level of transparency and inform travellers about what they can expect when using Mayfield Clinic for Fit To Fly COVID testing in Oxford.

We hope that this data helps customers make an increasingly informed decision about who they use for coronavirus PCR testing.

  • 98.35% of same-day tests returned on time
  • 100% of next day tests returned on time
  • Average of 8 hours between sample and results

The testing data we publish captures the time between sample collection and results reporting. Our data includes results for both in-clinic testing and self-testing offered at our Oxford clinic for travel testing. This dataset creates some natural variation, as customers can choose the time when they self-test (and may take hours to return the test to a drop point), and when customers test in-clinic there will typically be a lag until the courier departs.

100% of next day tests returned on time

85% of next day test produced results by the end of the same day

98.25% of same-day tests are returned on time

Average of 7:50 hours between sampling and results

The late sample was returned after the cut off time

Why use Mayfield Clinic's COVID testing services?

Whilst no COVID-19 PCR testing is infallible, throughout the crisis, we've strived to ensure that we consistently deliver PCR coronavirus testing to meet the expectations of our customers. This has included using 7 different laboratories, shifting capacity as required to deliver the fasted and most reliable testing possible.

For our PCR Fit To Fly travel testing, we run daily point-to-point couriers from all of our testing sites directly to the laboratories. This differs from other services that might rely on postal services for Fit To Fly testing.

All of our COVID testing services are overseen by our advisory board of GMC registered general practitioners. Onsite testing services are delivered by General Practitioners or trained Healthcare Professionals. Testing is conducted under our UKAS ISO17025 accreditation and our CQC registration (applicable to our Oxford head office).

COVID services

End your travel isolation by taking a PCR test on Day 5 (where Day 0 is the day of arrival back into the UK). Upon receipt of a negative result, you can end your quarantine.

All of our PCR tests include a test result that can be used for travel. This result acts as a 'Fit To Fly' certificate. By confirming your result, your identity (including a passport number), your personal details, and the time and date of the swab sample and laboratory report, we can create this official certification suitable for travel.

Confirm if you are currently carrying SARS-CoV-2 (COVID-19) infection by taking a PCR test. A PCR test is appropriate for identifying current infection from between day 0 (the day of first exposure) up to day 14. After day 14, an antibody test may be more suitable

Complete the Government's mandatory testing for travellers entering the UK by submitting a Day 2 and Day 8 PCR sample. Positive results from Day 2 are sent for genomic sequencing to identify the strain of the SARS-CoV-2 virus.

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