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Does a normal ECG exclude Hyperkalaemia?
Do we treat patients with a K+ < 6.5 mmol/L?
Do ECG changes in hyperkalaemia predict a adverse outcome?
Should we treat patients with hyperkalaemia and peaked T waves on their ECG?

A 65 yo patient with a history of hypertension and mild renal impairment, presents to your rural emergency department with some lightheadedness and shortness of breath.

His examination is normal. Bloods are sent for FBC and EUC and a troponin and an ECG is done. Does the ECG show changes consistent with hyperkalaemia?

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