Lecture 3: Neurologic Exam Flashcards
What is dysarthria?
Defective articulation
-Usually caused by defect in motor control of speech apparatus
What is aphasia?
Disorder in producing or understanding language
-Normally due to lesions in left hemisphere
What are the four things checked in AxO?
What is x1, x2, x3, x4?
Alert and Oriented: Person Person and Place Person, Place, and Time Person, Place, Time, and Event
What is anhedonia?
Inability to feel pleasure
What is delirium?
Confused thinking and reduced awareness of the environment
Is delirium reversible?
Yes
Is dementia reversible?
No
What is ptosis?
Drooping of eyelid
-Due to levator palpebrae weakness
What does CN IV lesions lead to?
Exotropia: Eyes drift laterally
Weakness of Downward Gaze
Vertical Diplopia: Worsens when looking down (e.g. walking down the stairs)
Head tilts to side opposite of lesion
What does CN VI lesions lead to?
Esotropia: Cannot abduct eye
Horizontal Diplopia
What is nystagmus?
Rhythmic oscillation of the eyes
What are possible causes of nystagmus?
Vision Impairment
Disorder of Labyrinth or Cerebellar Systems
Drug Toxicity
What does CN V lesions lead to?
Decreased sensation to face
Loss of Corneal Reflex
Weakness of mastication muscles
Jaw deviation toward weak side
What is Trigeminal Neuralgia?
Brief episodes of unilateral shock-like pains along trigeminal nerves
What does CN VII lesions lead to?
Bell’s Palsy
Loss of Corneal Reflex
Hyperacusis: increased sensitivity to sound
Crocodile Tears Syndrome: Patient sheds tears when chewing
How can bilateral facial palsies occurs?
variant of Guillain-Barre Syndrome