question: Q:A 56-year-old man with chronic kidney failure is brought to to the emergency department by ambulance after he passed out during dinner. On presentation, he is alert and complains of shortness of breath as well as chest palpitations. An EKG is obtained demonstrating an irregular rhythm consisting of QT amplitudes that vary in height over time. Other findings include uncontrolled contractions of his muscles. Tapping of his cheek does not elicit any response. Over-repletion of the serum abnormality in this case may lead to which of the following?? 
  {'A': 'Bradycardia', 'B': 'Diffuse calcifications', 'C': 'Kidney stones', 'D': 'Peaked T-waves', 'E': 'Seizures'},