Final answer:
Cardiac effects of lithium on EKG resemble changes in the T wave, which represents the repolarization of the ventricles.
Step-by-step explanation:
Cardiac effects of lithium on EKG resemble changes in the T wave.
On an EKG, the T wave represents the repolarization of the ventricles. It is a prominent point on the EKG and indicates that the ventricles are relaxing and preparing for the next heartbeat.
When lithium affects the cardiac system, it can cause changes in the T wave morphology on the EKG. This may include flattening, inversion, or other alterations in the shape of the T wave.