The association between ionized and total magnesium in critically ill patients: a prospective cohort study​Eyrun A. Kristinsdottir Svajunas Statkevicius Martin I. Sigurdsson Fredrik Hansson Marcus E. Broman a Department of Perioperative and Intensive Care, Skåne University Hospital, Lund, Swedenb Faculty of Medicine, Lund University, Lund, Swedenc Department of Anaesthesia and Intensive Care, Perioperative Services at Landspitali, the National University Hospital of Icelandd Faculty of Medicine, University of Iceland, Reykjavik, Icelande Integrative Research Laboratories Sweden AB, Göteborg, Swedenon March 14, 2026 at 2:22 am