a "sine wave" pattern (see below), which is frequently a fatal rhythm. Giving IV calcium is "cardioprotective" in the setting of hyperkalemia. Frequently, instant reversal of all hyperkalemic ECG ...
This ECG occured in the setting of a potassium level of 8.2 which is very high. A "sine wave" pattern subsequently ensued, thus this ECG change was a precursor to the classic "sine wave" of ...