Sodium, which is routinely tested in standard blood tests, has long been considered normal within the 135–146 mmol/L range. But this study challenges that assumption, suggesting a strong, long-term ...

Patients with low sodium levels before or after total knee or hip arthroplasty are more likely to experience complications and other adverse outcomes, reports a study in The Journal of Bone & Joint ...

DEAR DR. ROACH: My husband had a nonstop coughing incident for a night and day after a feast, which landed him in the emergency room. He was found to have extremely low sodium levels (118-120 mEq/L), ...