In the 2010 census, for example, 94% of the U.S. population selected at least one of the five standard, government-defined racial categories â white, black, Asian, American Indian or Pacific Islander. Federal policy defines âHispanicâ not as a race, but as an ethnicity. And it prescribes that Hispanics can in fact be of any race. But these census findings suggest that standard U.S. racial categories might either be confusing or not provide relevant options for Hispanics to describe their racial identity.
A pupil-involving third-nerve palsy may be an unusual presentation of im-pending carotid occlusion. Baker LJ, Galetta SL, Yousem DM, Golden MA, Asbury AK. Pupil-involving third-nerve palsy and carotid stenosis: rapid recovery following endarterectomy.
Sixth cranial nerve palsy affects the lateral rectus muscle, impairing eye abduction. The eye may be slightly adducted when the patient looks straight ahead. The palsy may be secondary to nerve infarction, Wernicke encephalopathy, trauma, infection, or increased intracranial pressure, or it may be idiopathic. 6th nerve palsy is usually obvious, but the cause is not. If retinal venous pulsations are seen during ophthalmoscopy, increased intracranial pressure is unlikely. CT is often done because it is often immediately available.