<prompt> ECG changes in hyperkalemia are all exceptSlender peaked T wavesDepressed ST-segmentQRS complex is slurredWide QRS  <response>: In Hypokalemia plasma K -3.5 meqL ST-segment depression is seen;Hyperkalemia plasma K -7.0 meqL. The PR and QRS intervals are within normal limits. Very tall, slender peaked T waves are now present.Hyperkalemia plasma K -8.5 meqL. There is no evidence of atrial activity; the QRS complex is broad and slurred and the QRS interval has widened to 0.2 s. The T waves remain tall and slender. Fuher elevation of the plasma K level may result in ventricular tachycardia and ventricular fibrillation. 