Diagnosing reflex sympathetic dystrophy can be difficult, because other conditions have similar symptoms and because symptoms can resolve spontaneously. As a result, it's important to rule out other conditions. To help in diagnosing reflex sympathetic dystrophy, the doctor often collects a detailed medical history, performs a physical exam, and conducts specific tests (like applying a stimulus to the affected area or administering a bone scan).
Diagnosing Reflex Sympathetic Dystrophy: An Overview
To help in diagnosing reflex sympathetic dystrophy (
RSD), the doctor will often first gather a detailed medical history, which includes asking questions about a person's general health, symptoms, family medical history, and history of trauma. The doctor will also do a complete physical exam to check for other signs of reflex sympathetic dystrophy, and may recommend certain tests.
Tests Used in Diagnosing Reflex Sympathetic Dystrophy
Since there is no specific diagnostic test for reflex sympathetic dystrophy, the most important role for testing is to help rule out other conditions. Some doctors apply a stimulus (such as touch, pinprick, heat, or cold) to the area to see if it causes pain. Doctors may also use a bone scan to identify changes in the bone and in blood circulation.
Difficulties With Diagnosing Reflex Sympathetic Dystrophy
Because many other conditions have similar symptoms, it can be difficult for doctors to make a firm diagnosis of reflex sympathetic dystrophy early in the course of the disorder, when symptoms are few or mild. For example, a simple nerve entrapment can sometimes cause pain severe enough to resemble reflex sympathetic dystrophy.
Diagnosing reflex sympathetic dystrophy is further complicated by the fact that some people will improve gradually over time without the need for
treatments for RSD.
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