Medicine A 78-year-old man with advanced renal disease has the ECG shown in Figure below (lead II). What is the diagnosis? A hyperkalemia B hypercalcemia C hypernatremia D pericarditis 💡 Explanation A 78-year-old man with advanced renal disease has the ECG shown in Figure below (lead II). What is the diagnosis? ✓ Correct Answer: A. hyperkalemia