<prompt> A 55-year-old woman is noted to have a traumatic injury to her right thigh. Which of the following is most sensitive for the diagnosis of compament syndromePulselessnessParesthesiasPainPallor  <response>: Pain, typically severe and even out of propoion to the injury, represents the first and most sensitive symptom of compament syndrome. Pain, however, is extremely nonspecific. Pulselessness represents a very late finding, and therefore the finding of a palpable pulse should not exclude compament syndrome in the differential diagnosis. 