ECG finding of Hyperkalemia:: (A) T wave inversion, (B) ST depression, (C) P pulmonale, (D) Wide QRS complex
Answer is D. Ans.(d) Wide QRS complexRef: Harrison 19th ed. / 310ECG Findings of Hyperkalemia* The first ECG finding in hyperkalemia is tall tented T waves followed by slowing of depolarization of heart.* This results in prolonged PR interval with QRS widening.* Subsequently the P waves start becoming smaller.* Sine wave pattern leading to ventricular fibrillation/ diastolic arrest of heart.