Diagnosing orthopedic symptoms can be tricky. X-rays, for example, don't tell you a lot about tendons and ligaments that are often responsible for joint pain. More advanced testing, like MRI, is costly, and often requires prior authorization from insurance companies leading to a delay in treatment. While there are a number of clinical orthopedic exam maneuvers that indicate the exact type of injury and help lead nurse practitioners to a diagnosis, the specifics of these exam techniques can be difficult to recall on the spot.