Berkman K, et al. - Researchers examined the investigation and management of hyponatremia in hospitalized patients via retrospectively auditing electronic medical records and laboratory data of inpatients with serum sodium (Na) ≤ 125 mmol/L, admitted over a 3-month period to the Princess Alexandra Hospital, Brisbane, Australia. They noted that inadequate investigation was performed for inpatient hyponatremia, causing errors in diagnosis. Heterogeneous and often incorrect treatment was provided to the patients. They suggested that oral urea may be an effective alternative treatment for patients with hyponatremia refractory to fluid restriction.