McCarthy K, et al. - In this study, the researchers examined if hyponatremia is independently associated with outcomes or a substitute of acute illness severity and unfavorable effects of altered sodium balance at the time of an emergency medical admission. From 2002-2017, there were a full 106,586 admissions in 54,928 patients. Participants with lower sodium at the time of admission were older at 66.7 years in correspondence to 63.3 years, with an extended length of stay (LOS) of 6.8 days vs 4.9 days. They observed a higher 30-day in-hospital mortality at 6.4% vs 4.4%. Overall, they found that hyponatremia at the time of an emergency medical admission may be a marker of acute illness severity and case complexity. The frequency of abnormal admission sodium and in-hospital mortality had decreased over time.