A) hyperparathyroidism
B) hypoparathyroidism
C) hyperthyroidism
D) hypothyroidism
Correct Answer: B
Solution :
Tetany is caused due to hypoparathyroidism. It causes the lowering of blood calcium level. This increases the excitability of nerves and muscles which results in sustained contraction of muscles of larynx, face, hands and feet.
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