<prompt> ECG change seen in HypokalemiaTall T waveU waveSine wave configrationShoening of QT interval  <response>: Hypokalemia plasma K -3.5 meqL. PR interval 0.2 s; QRS interval 0.06 s; ST-segment depression. A prominent U wave is now present immediately following the T. Tall T wave is present in hyperkalemiaIf the U wave is erroneously considered a pa of the T, a falsely prolonged QT interval of 0.6 s will be measured in hypokalemia but true QT interval remain same in severe hypokalemia plasma K -2.5 meqLRef: 23rd Edition of Ganongs Review of Medical Physiology pg no:503 