Final answer:
Biofeedback is a complementary therapy that involves using electronic equipment to provide audio and visual signals, enabling individuals to gain control over involuntary bodily processes and to manage chronic pain effectively (1).
Step-by-step explanation:
A nurse is teaching a client who has chronic pain about biofeedback. Among the options presented, audio and visual signals to induce a physiological change is the correct information to include. Biofeedback is a mind-body technique that uses electronic monitoring to teach patients to gain voluntary control over certain bodily functions, such as heartbeat rate, muscle tension, and skin temperature, to improve their health.
Through the use of feedback provided by these audiovisual signals, the patient learns to recognize the body's response to stress and relaxation and can adjust their behaviors to alleviate the pain. The practice has been found to be beneficial for a range of conditions, including tension headaches, high blood pressure, and anxiety, by promoting relaxation and helping individuals manage stress.