The Nurse Is Applying a TENS Unit on a Client

The nurse is applying a TENS unit on a client. What action by the nurse demonstrates the need for further education on this pain modality?

A) Places electrodes at least 2 inches (5 cm) apart on the client
B) Places an electrode over the surgical incision on the knee
C) Turns the unit on at the lowest strength possible
D) Instructs client to use the highest intensity tolerated