Final answer:
Complex Regional Pain Syndrome (CRPS) is also known as RSD (Reflex Sympathetic Dystrophy). It is a chronic pain condition that typically affects one limb, usually after an injury or trauma to that limb.
Step-by-step explanation:
Complex Regional Pain Syndrome (CRPS) is also known as RSD (Reflex Sympathetic Dystrophy). It is a chronic pain condition that typically affects one limb, usually after an injury or trauma to that limb. CRPS is characterized by severe pain, swelling, and changes in skin color and temperature. It can also cause changes in hair and nail growth and muscle weakness.