VMD-0257
QUESTION
Hypokalemia in cattle leads to?
OPTIONS
(A) Myotonia
(B) Tetany
(C) Opacity of the cornea
(D) Epistaxis
ANSWER
(A) Myotonia
EXPLANATION
Hypokalemia can cause marked skeletal-muscle weakness and abnormal muscle tone or myotonic manifestations in cattle because potassium is essential for membrane excitability. Tetany is more strongly associated with hypomagnesemia, while corneal opacity and epistaxis are not typical consequences of low potassium.
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