Hypo-Osmolar Hyponatremia - What Do You Do Next?

Dr. John SIED: Hypo-osmolar hyponatremia is actually a true hypo-OSmolar hyp ontremia. He says people often divide the causes by volume status, but he prefers to look at what the kidney's doing. SIED: The things you should think of in this bucket are psychogenic polydipsia and beer potomania. These are the main ones to consider; there are other more rare conditions as well.