A nurse is caring for a client who has an elevated potassium level and is on a cardiac monitor. The nurse is aware that hyperkalemia may be associated with changes to the T-wave. On the graphic, click on the area of the electrocardiogram (ECG) that represents the T-wave. (Selectable areas, or "Hot spots," can be found by moving your cursor over the artwork until the cursor changes appearance, usually into a hand. Click only on the Hot spot that corresponds to your answer.)