- Around 16 hospital trusts were using these machines, and 55,000 patients might have been affected
- MHRA said there is a positive bias delivered by the Trinity Biotech machines
- NHS trusts are reaching out to patients for repeat tests
Some NHS patients will have to undergo further blood tests because they were wrongly diagnosed with diabetes due to machine errors.
NHS England has confirmed that machines made by Trinity Biotech had produced inaccurate blood glucose readings, BBC reports.
Around 16 hospital trusts were using these machines, and 55,000 patients might have been affected.
The procedure, known as the haemoglobin A1C test, measures average blood sugar levels and monitors the condition.
The Medicines and Healthcare Regulator (MHRA) claims the issues with the tests on these machines were first reported in April 2024.
The MHRA said in July 2025 that it had received reports describing a positive bias delivered by the Trinity Biotech machines.
NHS trusts are reaching out to patients for repeat tests. Some of these patients have even been prescribed medication they don't need.
Trinity Biotech has said it is working closely with the UK health regulator.
