MANUAL SINGLE NATIONAL DISABILITY (PART I OF II) CHAPTER II 2. PERIPHERAL NERVOUS SYSTEM 2.1 General These standards establish the criteria used to assess permanent impairment resulting from the alteration of peripheral spinal nerves. It is important to note that the assessment should be based on a thorough neurological examination. To assess the deficiency is necessary to determine the degree of impairment in respect of: 2.1.1 Pain Pain is a subjective feeling, individual and immeasurable agony, discomfort and anxiety, which affects a person in a variable. To evaluate the pain associated with spinal peripheral nerve disorders should be taken into account: a) How pain interferes with the performance of daily activities of the individual; b) What is the extent of pain along the involved dermatome distribution; c) The extent to which the description suggests that pain is caused by peripheral neuropathy, and that is associated with ...