Professor Patrick Twomey is consultant chemical pathologist in St. Vincent's University Hospital, Dublin, the Laboratory Director for Clinical Chemistry within the St Vincent’s Hospital Group and Clinical Professor in the School of Medicine, University College Dublin. He obtained an Intercalated BSc in Biochemistry from University College Cork before being awarded his Medical degree. He is a Fellow of the Royal College of Physicians of Ireland, the Faculty of Pathology at the Royal College of Physicians of Ireland and of the Royal College of Pathologists where he also is an examiner. He is the President of the UEMS Section of Laboratory Medicine (European Union Medical Specialists) and Internal Auditor UEMS. He has co-authored one text book, several book chapters and over 150 peer-review manuscripts in the fields of clinical biochemistry, metabolic medicine, lipids and nutrition. He is the Best Practice Editor of the Journal of Clinical Pathology and is a member of the editorial boards of the Journal of Clinical Pathology, the British Medical Journal Case Reports and the Clinical Biochemistry journal. He was previously the Vice Chair of the UK Joint Working Group on Quality Assessment in Pathology and past Chair of the Chemical Pathology National Quality Assurance Advisory Panel within the Royal College of Pathologists - currently he sits on the Vitamin D EQA Scheme (DEQAS) advisory panel and the Wales EQA Scheme (WEQAS) Steering Committee.