Questions:
71. How are 3rd nerve dysfunctions classified?
72. What is the definition of a partial 3rd nerve palsy?
73. What are the two categories of complete 3rd nerve palsies?
74. What is meant by “a pupil-sparing 3rd nerve palsy”?
75. What tests should be done when a patient over age 50 presents with an isolated incomplete 3rd nerve palsy and the pupil is involved?
76. What should be done when a patient over age 50 presents with an isolated complete 3rd nerve palsy and the pupil is Not involved?
77. What should be done when a patient over age 50 presents with an isolated complete 3rd nerve palsy, the pupil is Not involved; normal blood glucose, CBC, platelets, ESR, and CRP is followed daily and develops pupillary involvement?
78. What is the most common cause of an isolated “pupil-sparing 3rd nerve palsy”?
79. Are microvascular 3rd nerve palsies painful?
80. What should be ruled-out when making the diagnosis of a microvascular complete 3rd nerve palsy with pupil-sparing in a patient over 50?
81. What in addition to cranial arteritis should be considered when making the diagnosis of a microvascular pupil complete 3rd nerve palsy with pupil-sparing?
82. How long does it usually take for a microvascular 3rd nerve palsy to resolve?
83. If a complete 3rd nerve palsy with pupil-sparing thought to be of microvascular origin does not clear in 4 months what should be done?
84. What test should be done in a patient under age 50 who presents with an isolated 3rd nerve palsy with or without pupillary involvement?
85. Should the pupils of a patient with an acute 3rd nerve palsy with “pupil sparing” be dilated to complete the eye exam?
86. A patient without a history of trauma has signs of aberrant regeneration of the 3rd nerve. What should be ruled-out?
87. What are the symptoms of pituitary apoplexy?
88. What are the findings when there is a unilateral lesion of the entire 3rd nerve nucleus?
89. Why does a complete unilateral nuclear 3rd nerve palsy have bilateral ptosis?
90. Why does a complete unilateral nuclear 3rd nerve palsy have bilateral elevation deficits?
91. What are the findings of a unilateral lesion of the 3rd nerve fascicle?

Questions:
61. What are 6 characteristics of a 4th nerve palsy?
62. When a patient has a 3rd nerve palsy and the eye cannot adduct, how can the function of the ipsilateral 4th nerve shown to be present?
63. What 5 other conditions should be considered when the patient has the findings of a 4th nerve palsy?
64. A patient has a 4th nerve lesion associated with a contralateral Horner syndrome, where does this localize the lesion?
65. A microvascular 4th nerve palsy is suspected because the 60-year-old patient has diabetes, hypertension, and hyperlipidemia what tests should be ordered?
66. A presumed microvascular 4th nerve palsy in a 60-year-old patient with diabetes, hypertension, and hyperlipidemia has not resolved within 3-6 months, what tests should be ordered?
67. A 40-year-old patient appears to have a 4th nerve functional defect. What diagnoses in addition to 4th nerve palsy should be considered?
68. A 60-year-old patient presents with intermittent vertical diplopia with the findings of a 4th nerve palsy on the 3-step-test. What in addition to an acquired 4th nerve palsy, restriction, myasthenia, Wernicke encephalopathy, and cranial arteritis should be considered? 
69. Are congenital fourth cranial nerve palsies common?
70. What are 3 findings characteristic of a congenital a decompensated congenital 4th nerve palsy?