Outpatient pharmacy claims for medications known to cause hyponatremia were observed within the -60/+15-day period before or after the laboratory date in 1 of every 4 claims ( Table 1).

with increasing lethargy and hyponatremia. Results of serum and urine electrolyte studies, as well as fluid and electrolyte therapy, are presented in Table 2 and Figure 2. Despite a transient rise ...