The nurse is applying a TENS unit to a client in pain. Prior to applying the electrodes, which action by the nurse is the most appropriate?
1. Turning the unit on
2. Washing, rinsing, and drying the designated area with soap and water
3. Increasing the amplitude to the desired setting
4. Changing the battery
Correct Answer: 2
Washing, rinsing, and drying the area will help to improve the contact of the electrodes to the skin. The unit should not be turned on until the electrodes are in place, to avoid injuring the client. The amplitude is slowly increased once the electrodes are in place to determine the level that is most effective for the client. The battery is changed when the unit is removed.
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