Physician Assistant Physician Assistant Neurological System Disorders 3

Question 1

Which of the following distinguishes essential tremor from Parkinson's tremor?

Accepted Answer

Essential tremor is an action/postural tremor; Parkinson's is a resting tremor

Answer

Essential tremor occurs at rest; Parkinson's occurs with action

Answer

Essential tremor involves the legs primarily

Answer

Essential tremor is associated with bradykinesia

Question 2

A patient with myasthenia gravis will show which characteristic pattern on repetitive nerve stimulation?

Accepted Answer

Decremental response

Answer

Incremental response

Answer

No change

Answer

Fibrillation potentials

Question 3

A 60-year-old male smoker presents with ptosis, diplopia, and proximal muscle weakness that improves with exercise. Which paraneoplastic syndrome is most likely?

Accepted Answer

Lambert-Eaton myasthenic syndrome

Answer

Myasthenia gravis

Answer

Dermatomyositis

Answer

Polymyositis

Question 4

Which imaging modality is the preferred initial study for a patient presenting with acute stroke symptoms?

Accepted Answer

Non-contrast CT head

Answer

MRI brain with contrast

Answer

CT angiography

Answer

Carotid ultrasound

Question 5

A patient with Alzheimer's disease has deficiency of which neurotransmitter?

Accepted Answer

Acetylcholine

Answer

Dopamine

Answer

Serotonin

Answer

Norepinephrine

Question 6

Bell's palsy involves dysfunction of which cranial nerve?

Accepted Answer

CN VII (Facial)

Answer

CN V (Trigeminal)

Answer

CN IX (Glossopharyngeal)

Answer

CN X (Vagus)