Light touch is best tested with a cotton-tipped swab, but a light finger touch will often suffice, as long as care is taken to make the stimulus fairly reproducible. You can test the relative sharpness of pain sensation by randomly alternating stimuli with the sharp or dull end of a safety pin (always use a new pin or stick for each patient).Go to Video 70 Go to Video 71 Go to Video 72 Go to Video 73 Go to Video 74
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