Question

Which electrocardiogram (ECG) characteristic is usually seen when a client's serum potassium level is low?

1) U wave
2) T wave
3) P wave

Answer 1

The U wave is usually seen on an ECG when a client's serum potassium level is low.

Step-by-step explanation:

The electrocardiogram (ECG) characteristic that is usually seen when a client's serum potassium level is low is U wave. The U wave is a small deflection that occurs after the T wave and represents the repolarization of the Purkinje fibers in the ventricles. A low serum potassium level can cause abnormalities in the repolarization phase of the cardiac cycle, leading to the appearance of U waves.