Cranial Nerve Palsy Quiz
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Questions and Answers

Which type of strabismus may be associated with raised intracranial pressure?

  • Accommodative esotropia
  • Congenital strabismus
  • Posterior fossa tumors or malformations
  • Neurological strabismus (correct)

    • What type of strabismus is characterized by the eyes turning in, out, up, or down?

  • Accommodative esotropia
  • Intermittent strabismus
  • Congenital strabismus
  • Neurological strabismus (correct)

    • Which condition is NOT listed as a cause of strabismus in the text?

  • Head trauma
  • Neurological onset
  • Conjunctivitis (correct)
  • Myasthenia gravis

    • Which cranial nerves are mentioned as potentially associated with cranial nerve palsies?

    <p>CN III, IV, VI</p> Signup and view all the answers

    Which test indicates mechanical restriction of a muscle?

    <p>Positive Forced Duction Test</p> Signup and view all the answers

    What is another name for Monocular Depression Deficiency?

    <p>Double Depressor Palsy</p> Signup and view all the answers

    What is the common cause of Internuclear Ophthalmoplegia in younger patients?

    <p>Multiple Sclerosis</p> Signup and view all the answers

    Which presentation is associated with Unilateral CN III with bilateral ptosis?

    <p>Nuclear Palsies</p> Signup and view all the answers

    What is the first step in managing strabismic symptoms?

    <p>Prescribing Glasses</p> Signup and view all the answers

    What is the common dosage range for Botulinum Neurotoxin in treating acute paralytic strabismus?

    <p>1.25 to 5 units</p> Signup and view all the answers

    Which side effect is associated with Botulinum Neurotoxin treatment?

    <p>Difficulty swallowing</p> Signup and view all the answers

    What is the purpose of eye muscle surgery in treating strabismus?

    <p>To weaken, strengthen, or change the vector of force for a given muscle</p> Signup and view all the answers

    What should be ordered if ischemic etiology is suspected in a patient with strabismus?

    <p>Blood Pressure, CBC, RPR, FTA-Ab, ANA, ESR, CRP, glucose tolerance test</p> Signup and view all the answers

    What is the main goal of occlusion as a short-term treatment for diplopia?

    <p>To temporarily treat diplopia</p> Signup and view all the answers

    What is the common cause of supranuclear neurogenic palsies?

    <p>Atherosclerosis</p> Signup and view all the answers

    Which of the following is a common treatment for muscle spasms?

    <p>Botulinum toxin injections</p> Signup and view all the answers

    What is the condition characterized by weakness or paralysis of the muscles responsible for eye movement?

    <p>Paralytic strabismus</p> Signup and view all the answers

    Which structure is associated with the condition known as orbital apex syndrome?

    <p>Cavernous sinus</p> Signup and view all the answers

    What is a common feature of paretic strabismus?

    <p>Diplopia</p> Signup and view all the answers

    What is a potential consequence of cranial nerve palsy?

    <p>Double vision</p> Signup and view all the answers

    Which condition is associated with the use of Fresnel prism lenses?

    <p>Strabismus</p> Signup and view all the answers

    What is a common cause of strabismus?

    <p>Neurologic causes</p> Signup and view all the answers

    Which of the following is a characteristic of internuclear ophthalmoparesis?

    <p>Double vision</p> Signup and view all the answers

    What is a potential consequence of paralytic strabismus?

    <p>Diplopia</p> Signup and view all the answers

    Which structure is associated with the condition known as internuclear ophthalmoparesis?

    <p>Orbit</p> Signup and view all the answers

    What is a common feature of internuclear ophthalmoparesis?

    <p>Double vision</p> Signup and view all the answers

    Which test is NOT typically used to evaluate cranial nerve 3 palsy?

    <p>Brain MRI</p> Signup and view all the answers

    What is the main symptom of trochlear nerve palsy?

    <p>Convergence strabismus</p> Signup and view all the answers

    What are the etiologies of cranial nerve 4 palsy?

    <p>Congenital abnormalities, head trauma, and microvasculopathy</p> Signup and view all the answers

    What is the effect of lesions of the abducens nerve?

    <p>Ipsilateral paresis of the lateral rectus and convergence strabismus</p> Signup and view all the answers

    Which condition can be caused by multiple cranial nerve palsies?

    <p>Horner's syndrome</p> Signup and view all the answers

    What are the differential diagnoses for single muscle palsies?

    <p>Atypical presentations, myogenic causes, and trauma-related conditions</p> Signup and view all the answers

    Which nerve palsy affects the extraocular muscles and pupil dilation?

    <p>Oculomotor nerve palsy</p> Signup and view all the answers

    What is a common etiology of cranial nerve 3 palsy?

    <p>Vascular causes</p> Signup and view all the answers

    What is the effect of trochlear nerve palsy?

    <p>Double vision</p> Signup and view all the answers

    What can cause abducens nerve palsy?

    <p>Trauma, aneurysm, ischemic, or idiopathic causes</p> Signup and view all the answers

    Which condition can be caused by multiple nerve palsies?

    <p>Horner's syndrome</p> Signup and view all the answers

    Study Notes

    Cranial Nerve Palsy and Multiple Nerve Palsies

    • Symptoms of cranial nerve 3 palsy include double vision, blurry vision, reduced peripheral vision, headaches, and dizziness
    • Oculomotor nerve palsy affects the extraocular muscles, causing eye movement and pupil dilation issues
    • Etiologies of cranial nerve 3 palsy include vascular, compressive, traumatic, and inflammatory causes
    • Tests to evaluate cranial nerve 3 palsy include case history, visual acuity, cover test, and pupil testing
    • Trochlear nerve palsy affects the superior oblique muscle and can result from congenital or acquired causes
    • Etiologies of cranial nerve 4 palsy include congenital abnormalities, head trauma, and microvasculopathy
    • Tests to evaluate cranial nerve 4 palsy include case history, cover test, and pupil testing
    • Abducens nerve palsy affects the lateral rectus muscle and can result from trauma, aneurysm, ischemic, or idiopathic causes
    • Lesions of the abducens nerve cause ipsilateral paresis of the lateral rectus and convergence strabismus
    • Multiple cranial nerve palsies can affect CN 3, 4, 5, 6, or cause Horner's syndrome, with cavernous sinus and orbital apex syndrome being common causes
    • Other forms of paralysis include single muscle palsies and double elevator palsy, each with distinct presentations and etiologies
    • Differential diagnoses for single muscle palsies include atypical presentations, myogenic causes, and trauma-related conditions such as blowout fractures

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    Related Documents

    Paralytic Strabismus Presentation PDF

    Description

    Test your knowledge of cranial nerve palsy and multiple nerve palsies with this quiz. Explore symptoms, etiologies, and diagnostic tests for cranial nerve 3, 4, and 6 palsy, as well as multiple cranial nerve palsies. Learn about the causes and presentations of single muscle palsies and double elevator palsy.

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