Hogwarts School of Witchcraft and Neurology VME II edition

Question 1

Which of the following structures is NOT part of the lower motor neuron?

• Neuromuscular junction
• Muscle spindle
• Nerve root
• Dorsal horn neuron

Answer 1

Dorsal horn neuron

Question 2

Which option below best represents the half-life of potassium bromide in dogs

• 2-3 months
• 2-3 days
• 2-3 hours
• 2-3 weeks

Answer 2

2-3 weeks

Question 3

Which cranial nerve is responsible for sensation to the face and motor to the muscles of mastication?

Answer 3

Cranial nerve V (Trigeminal)

Question 4

At what time point after starting a maintenance dose of phenobarbital should you check blood work and drug levels in a dog, assuming you intend to do that only when the drug reaches a steady state?

Answer 4

2 weeks

Question 5

He’s circlin’ to the right, ‘as a head tilts to the left, and ‘as proprioceptive deficits in his right front and right rear legs. Where’d ya reckon the problem is?

Answer 5

Right caudal cerebellar peduncle

Question 6

Which of the following clinical signs localizes a lesion specifically (only) to the forebrain/thalamocortex?

Answer 6

Seizures

Question 7

(T/F) In regards to causes of seizures, idiopathic epilepsy is an appropriate differential for a dog that has their first seizure between 6 months and 6 years of age

Answer 7

True

Question 8

In addition to other clinical signs of forebrain disease, animals with a lesion of the diencephalon (thalamus/hypothalamus) may also have which of the following?

• Abnormal water consumption
• Decreased spinal reflexes on one side of the body
• Lower motor neuron bladder
• Severe ataxia of all four limbs

Answer 8

Abnormal water consumption

Question 9

There is reduced proprioceptive placing in all four limbs. Withdrawal reflexes are reduced in both thoracic limbs but all spinal reflexes appear normal in the pelvic limbs. Based on these findings, you localize the lesion to what location?

Answer 9

C6-T2

Question 10

A 15-year-old castrated male golden retriever is presented to you for a very sudden onset of difficulty walking. His owners report that he was observed to be normal earlier today and they came home from work to find him having difficulty standing. Your neurologic examination reveals the following abnormalities: A head tilt toward the right, and vestibular ataxia with falling and drifting to the right. When you initially examine the dog, he does not have nystagmus, but when you roll him onto his back, he develops vertical nystagmus. He also has deficits in proprioceptive placing in the right thoracic and right pelvic limbs. The remainder of his neurologic examination is unremarkable. Which of the following differential diagnoses is most likely in this patient?

• Idiopathic/geriatric vestibular disease
• Otitis media-interna
• Neoplasia of cranial nerve V
• Vascular event/stroke

Answer 10

Vascular event/stroke