ICVA Equine Lameness and Neurology 2

Question 1

Which nerve block is used to desensitize the palmar fetlock and pastern region in the horse?

Accepted Answer

Abaxial sesamoid nerve block

Answer

Low 4-point nerve block

Answer

High palmar nerve block

Answer

Median nerve block

Question 2

A horse with equine protozoal myeloencephalitis (EPM) most commonly shows which clinical sign?

Accepted Answer

Asymmetric ataxia and muscle atrophy

Answer

Bilateral forelimb lameness

Answer

Facial nerve paralysis only

Answer

Hypermetria in all four limbs equally

Question 3

What is the most reliable imaging modality for evaluating the navicular bone and surrounding soft tissues in equine foot lameness?

Accepted Answer

MRI

Answer

Radiography

Answer

Ultrasonography

Answer

Nuclear scintigraphy

Question 4

Stringhalt in horses is characterized by which gait abnormality?

Accepted Answer

Exaggerated involuntary hindlimb flexion during forward movement

Answer

Dragging of the forelimbs during trot

Answer

Circumduction of the hindlimbs at walk

Answer

Intermittent weight-shifting between forelimbs at rest

Question 5

Which structure is most commonly injured in horses diagnosed with hindlimb proximal suspensory desmitis?

Accepted Answer

Origin of the suspensory ligament at the proximal palmar metacarpus

Answer

Plantar ligament

Answer

Distal sesamoidean ligaments

Answer

Straight sesamoidean ligament

Question 6

In the AAEP lameness grading scale, a grade 3 lameness is best described as:

Accepted Answer

Consistently observable lameness at trot under all circumstances

Answer

Lameness difficult to observe at trot but consistently present

Answer

Lameness only visible at canter or with specific manipulation

Answer

Non-weight-bearing lameness

Question 7

Wobbler syndrome (cervical vertebral stenotic myelopathy) in horses is most definitively diagnosed by which method?

Accepted Answer

Myelography or CT myelography

Answer

Rectal palpation

Answer

CSF tap alone

Answer

Serum vitamin E levels