Equine Lameness and Neurology Flashcards
7 cards from real ICVA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Equine Lameness and Neurology flashcards as text
Which condition is characterized by intermittent upward fixation of the patella in horses?
Answer: Locking stifle (medial patellar ligament entrapment)
Intermittent upward fixation of the patella occurs when the medial patellar ligament hooks over the medial trochlear ridge, locking the stifle in extension.
Equine grass sickness (equine dysautonomia) primarily affects which part of the nervous system?
Answer: Autonomic ganglia and enteric nervous system
Grass sickness causes degeneration of autonomic ganglia and enteric neurons, leading to gastrointestinal dysmotility and autonomic dysfunction.
When performing an intra-articular block of the coffin joint, the needle is most commonly inserted at which site?
Answer: Dorsal midline of the coronary band between the extensor process and coronary band
The coffin joint is most reliably accessed via the dorsal approach at the coronary band, between the common digital extensor tendon and the coronary band.
Which finding on CSF analysis is most consistent with viral encephalitis in horses?
Answer: Mononuclear pleocytosis with mildly elevated protein
Viral encephalitides typically produce a mononuclear (lymphocytic/monocytic) pleocytosis with mildly elevated protein in the CSF.
The palmar digital nerve block (PDN block) in the horse desensitizes which structures?
Answer: The caudal two-thirds of the foot including the heel, frog, and navicular region
The palmar digital nerve block desensitizes the caudal two-thirds of the foot, including the navicular bone, digital cushion, and heels.
Which electrolyte abnormality is most associated with exertional rhabdomyolysis ('tying up') in horses?
Answer: Hyperkalemia and elevated serum CK/AST
Exertional rhabdomyolysis causes severe muscle cell damage, releasing potassium and muscle enzymes (CK and AST) into the bloodstream.
Shivers in horses is a progressive neuromuscular disorder most characteristically manifested by:
Answer: Trembling and abnormal posturing of a hindlimb when the limb is lifted or the horse moves backward
Shivers causes trembling, hindlimb abduction, and abnormal flexion postures primarily when the limb is manually lifted or the horse backs up.