Question 1
A 54-year-old woman has taken extended-release morphine for 3 years for chronic low back pain. Over the past 4 months her pain has become diffuse, now involving her thighs and shoulders, and feels different from her original back pain. Each dose increase has been followed by worsening pain. Examination is unremarkable and imaging is unchanged. Which of the following BEST explains her presentation?
Show answer & explanation
Correct answer: C - Opioid-induced hyperalgesia