Monitor safe sodium correction over time.
Maximum 8–10 mEq/L in first 24 hours, 18 mEq/L in 48 hours. Faster correction risks osmotic demyelination syndrome (ODS). High-risk patients (chronic hyponatremia, alcoholism, malnutrition) should be corrected ≤ 6–8 mEq/L/24h. Check sodium every 2–4 hours during active correction.