Normal Sensory Exam ; Two-Point Discrimination

Two-Point Discrimination
Two-point discrimination is tested by using calipers or a fashioned paper clip. The smallest and most dense sensory units are located in those areas that have the greatest somatosensory cortical representation. The patient should be able to recognize two-point separation of 2-4 mm on the lips and finger pads, 8-15 mm on the palms and 3-4 cm on the shins.

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