All of the following are the electrocardiographic features of Hyperkalemia, except-: (A) Prolonged PR interval, (B) Prolonged QT interval, (C) Sine wave patterns, (D) Loss of P waves
Answer is B. Early ECG changes of hyperkalemia, typically seen at a serum potassium level of 5.5-6.5 mEq/L, include the following: Tall, peaked T waves with a narrow base, best seen in precordial leads. Shoened QT interval. ST-segment depression . Ref Harrison 20th edition pg 1411