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

The abaxial sesamoid nerve block desensitizes the palmar and plantar fetlock, pastern, and foot regions.

Question 2

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

Accepted Answer

Asymmetric ataxia and muscle atrophy

Answer

EPM typically causes asymmetric ataxia, weakness, and focal muscle atrophy due to multifocal CNS lesions.

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

MRI provides superior soft tissue and bone detail of the foot, including the navicular bone, impar ligament, and deep digital flexor tendon.

Question 4

Stringhalt in horses is characterized by which gait abnormality?

Accepted Answer

Exaggerated involuntary hindlimb flexion during forward movement

Answer

Stringhalt is characterized by sudden, exaggerated, involuntary flexion of one or both hindlimbs during movement.

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

Proximal suspensory desmitis involves injury to the origin of the suspensory ligament at the proximal palmar or plantar cannon bone.

(ICVA) International Council for Veterinary Assessment Practice Test