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[Gr. tetanos, stretched] Intermittent tonic muscular spasms that typically involve the arms or legs.
SYMPTOMS Spasms may be accompanied by numbness, tingling, loss of function, and pain in affected muscle groups.
SIGNS Characteristic signs include Trousseau sign, Chvostek sign, and the peroneal sign. Prolongation of the isoelectric phase of the S-T segment of the electrocardiogram may be present with tetany that is caused by a low serum calcium level. SEE: Chvostek sign; SEE: hyperventilation; SEE: Trousseau sign
ETIOLOGY It may occur in infants, esp. newborns in intensive care and those who have had perinatal asphyxia. Other causative factors include hypocalcemia, e.g., in hypoparathyroidism or after parathyroid surgery, hypomagnesemia, hypokalemia, alkalosis, e.g., in hyperventilation, infection with Clostridium tetani, and vitamin D deficiency.
Venes, Donald, editor. "Tetany." Taber's Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/745913/all/hyperventilation_tetany.
Tetany. In: Venes D, ed. Taber's Medical Dictionary. 23rd ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/745913/all/hyperventilation_tetany. Accessed November 20, 2019.
Tetany. (2017). In Venes, D. (Ed.), Taber's Medical Dictionary. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/745913/all/hyperventilation_tetany
Tetany [Internet]. In: Venes D, editors. Taber's Medical Dictionary. F.A. Davis Company; 2017. [cited 2019 November 20]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/745913/all/hyperventilation_tetany.
* Article titles in AMA citation format should be in sentence-case
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PB - F.A. Davis Company
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