This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Which of the following is NOT TRUE about ECG changes in hyperkalemia? 
Select and explain. 
A. Peaked P-wave, B. Peaked T -wave, C. Sinusoidal shape complex, D. Broad QRS Complex
A: Peaked P-wave
Answer: A: Peaked P-wave 
Explanation: With mild to moderate hyperkalemia, there is reduction of the size of the P wave and development of peaked T waves. Severe hyperkalemia results in a widening of the QRS complex, and the ECG complex can evolve to a sinusoidal shape.