Why is temperature recorded during the course of an electrodiagnostic examination?
Nerve conduction velocities drop by 1.5 to 2.5 m/s per °C reduction in both sensory and motor nerves. These changes can be significant. Failure to warm the limb to a standard temperature, usually 30°C for the leg and 32°C for the arm, can result in false-positive studies, leading to a misdiagnosis.