RT Journal Article SR Electronic T1 Hyponatraemia in patients with multiple myeloma JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr2015212838 DO 10.1136/bcr-2015-212838 VO 2015 A1 Mirvis, Eitan A1 De-Silva, Dunnya A1 Mehta, Atul YR 2015 UL http://casereports.bmj.com/content/2015/bcr-2015-212838.abstract AB Hyponatraemia is the most common electrolyte disturbance encountered in clinical practice. Several causes of hyponatraemia are recognised and in many patients the aetiology may be multifactorial. An important cause is water intoxication and this is often iatrogenic. We present three patients, all of whom suffered from multiple myeloma, who illustrate different aspects of hyponatraemia, its causes and management.