Potassium repletion

Potassium repletion should only be undertaken under closely monitored conditions because of the risk of provoking more troublesome arrhythmias, marked hyperkalemia, and even death (ADlm§n..,.§Dd.,..S.m.ith..,.1995). Either the intravenous or the oral route of administration may be used. We prefer the latter when the rhythm disturbance is not immediately life threatening. The rate of intravenous infusion of potassium should be limited to less than 0.5 to 1 mmol/min. Normal saline rather than 5 per cent glucose should be used in cases of potassium depletion (< 3.5 mmol/l).

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