GPs and hospitals across Ceredigion, Carmarthenshire and Pembrokeshire are being advised to "postpone non-essential blood tests" due to an international shortage of blood test tubes.

NHS services are currently affected by the shortage of tubes, which are used for taking some blood samples.

BD, which makes the vials for the NHS across the UK, has warned of serious supply chain issues due to the pandemic and transportation issues.

NHS Wales said it working with other nations and government to deal with the medical supply issue.

A statement from Hywel Dda University Health Board said: "Doctors and clinicians across the UK, working in GP practices, hospitals, community and mental health services and ambulance trusts, have been advised to postpone non-essential blood tests, and review intervals of blood testing, at this time.

"This is to preserve supplies for people that urgently need blood tests.

"Patient safety remains the priority, and your test will only be delayed if a clinician has assessed it is clinically safe to do so."

The heath board added that people who require urgent or unplanned care should continue to seek it in the usual ways.

The health board's medical director and deputy chief executive Dr Philip Kloer said: “Clinicians and managers in the Hywel Dda area are working together to be as efficient as we can to ensure we do not waste blood bottles and that we do not duplicate tests that have already been done.

"We are following expert guidance and carefully considering the tests which are ordered, prioritising those that have an immediate impact on diagnosis or treatment.

“We are sorry for any anxiety or disruption this may cause, but want to emphasise that these measures are being taken in the interests of patient safety.

"Your clinician will review your case and you will receive a test if it is deemed clinically essential.

“We thank our patients and their families and carers for their patience at this time.”