Answer - Case of the month (Oct 2011)
Q: This patient had a severe electrolyte disorder (and no ischemia). Which electrolyte disorder?
Answer: B. Potassium levels was severely elevated: 7.5 mmol/L. Note the flattened P wave. The widened QRS and the abnormal repolarization.
Also compare E000560 and E000562 which were made during correction of potassium levels. E000560 clearly shows peaked T waves.