The Nurse Is Evaluating the Effectiveness of Guided Imagery for Pain

The nurse is evaluating the effectiveness of guided imagery for pain management as used for a patient who has second- and third-degree burns and needs extensive dressing changes. Which finding best indicates the effectiveness of guided imagery?

A) The patient's facial expressions are stoic during the procedure.
B) The patient rates pain during the dressing change as a 6 on a scale of 0 to 10.
C) The patient's need for analgesic medication decreases during the dressing changes.
D) The patient asks for pain medication during the dressing changes only once throughout the procedure.