Practice Patterns and Outcomes of Potassium Repletion Thresholds during Critical Illness.

Potassium repletion is common in critically ill patients and occurs over a narrow range of 'normal' potassium levels (3.5-4.0 mEq/L); use of a threshold-based repletion strategy to guide potassium repletion in ICU patients is not associated with clinically meaningful differences in outcomes.