Clin Assess -- this could be a blood bath. Flashcards
(91 cards)
When testing the cranial nerves, which two nerves only have sensory function?
I and II
What 5 cranial nerves only have motor function?
III (pupil constriction, opening of eye, lid elevation, most extra-ocular movements)
IV (downward, internal rotation of the eye)
VI (lateral deviation of the eye)
XI (sternocleidomastoid and upper portion of the trapezius)
XII (tongue)
If you have anisocoria (unequal pupils), intracranial hemorrhage, transtentorial herniation, or Horner’s syndrome, what cranial nerves might be affected?
II, III
A patient with Bell’s Palsy is having an issue with what cranial nerve?
VII
Cerumen impaction, otitis media, and Meniere’s disease will cause problems with what cranial nerve?
VIII
Pharyngeal weakness would be associated with a lesion on what cranial nerves?
IX, X
Sinusitis, smoking, aging, and cocaine use may cause problems with what cranial nerve?
I
Aphonia due to vocal cord paralysis, dysarthria (poor articulation) due to cerebellar disease, aphasia (disorder in producing or understanding language) such as Wernicke’s aphasia or Broca’s aphasia would be associated with what cranial nerves?
V, VII, X, XII
Trapezius weakness could be associated with a lesion on what cranial nerve?
XI
Cortical lesion, amyotrophic lateral sclerosis, or polio would be associated with what cranial nerve?
XII
Nystagmus, ptosis, diplopia, astigmatism, Grave’s disease are all issues that would be associated with lesions on what cranial nerves?
III, IV, VI
Papilloedema, glaucoma, stroke, retinal emboli, and optic neuritis are issues associated with what cranial nerve?
II
True or False
A patient with a lesion within the cerebral cortex, brainstem, or spinal cord will present with increased deep tendon reflexes.
True
Lesions within what part of the brain would present with either normal or decreased deep tendon reflexes?
Subcortical gray matter (basal ganglia) or Cerebellum
True or False
A peripheral nervous system disorder will always present with increased deep tendon reflexes?
False
Peripheral nervous system lesions will either present with normal or decreased deep tendon reflexes
What could be the cause of a lesion in the neuromuscular junction?
Myasthenia Gravis
What could be the cause of a lesion in the muscle?
Muscular dystrophy
What test do we do to test for metabolic encephalopathy?
Asterixis
What does a positive Babinski sign look like?
Dorsiflexion of the big toe is a positive sign from a CNS lesion in the corticospinal tract
Also seen in unconscious states from drug or alcohol intoxication or in the post-ictal period following a seizure
What test should we do if DTRs seem hyperactive (4+)?
Clonus – dorsiflex and plantar flex foot then sharply dorsiflex foot and hold
If clonus present, may indicated CNS disease
What are the two meningeal signs?
Brudzinski’s sign and Kernig’s sign
What is the Brudzinski’s sign? And what nerve is this affecting?
Flex the neck and watch the knees and hips; flexion of both the hips and knees is a positive sign
Femoral nerve
What is the Kernig’s sign? And what nerve is this affecting?
Flex the patient’s leg at both the hip and knee, and the straighten the knee. Positive test is increased pai and increased resistance to extending the knee
Sciatic nerve
What is the pronator drift test? What does a positive test look like?
Pt should stand for 20-30 seconds with both arm straight forward, palms up, eyes closed. Tap the arms briskly downward – arms normally return smoothly to horizontal position.
Positive test = sensitive and specific for corticospinal tract lesion originating in the contralateral hemisphere. Downward drift of the arm with flexion of fingers and elbows may also occur.