Tetany due to acute calcium deficiency (Q39936): Difference between revisions
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O sinal característico da hipocalcemia aguda é a tetania, que é caracterizada por irritabilidade neuromuscular. Os sintomas de tetania podem ser leves (dormência perioral, parestesias de mãos e pés, cãibras musculares) ou graves (espasmo carpopedal, laringoespasmo e convulsões focais ou generalizadas, que devem ser distinguidas das contrações musculares tônicas generalizadas que ocorrem na tetania grave). Outros pacientes apresentam sintomas menos específicos, como fadiga, hiperirritabilidade, ansiedade e depressão, e alguns pacientes, mesmo com hipocalcemia grave, não apresentam sintomas neuromusculares. Os fatores que determinam a variação na frequência e gravidade dos sintomas incluem situação do equilíbrio ácido-básico (hipocalcemia e alcalose agem sinergicamente para causar tetania), hipomagnesemia e o nível sérico de potássio. | |||
| description / en | description / en | ||
The hallmark of acute hypocalcaemia is tetany, which is characterised by neuromuscular irritability. The symptoms of tetany may be mild (peri-oral numbness, paresthesias of the hands and feet, muscle cramps) or severe (carpopedal spasm, laryngospasm, and focal or generalised seizures, which must be distinguished from the generalised tonic muscle contractions that occur in severe tetany). Other patients have less specific symptoms such as fatigue, hyperirritability, anxiety, and depression, and some patients, even with severe hypocalcaemia, have no neuromuscular symptoms. Factors that determine the variation in frequency and severity of symptoms include acid-base status (hypocalcaemia and alkalosis act synergistically to cause tetany), hypomagnesaemia, and potassium balance. | |||
Revision as of 05:32, 13 August 2026
The hallmark of acute hypocalcaemia is tetany, which is characterised by neuromuscular irritability. The symptoms of tetany may be mild (peri-oral numbness, paresthesias of the hands and feet, muscle cramps) or severe (carpopedal spasm, laryngospasm, and focal or generalised seizures, which must be distinguished from the generalised tonic muscle contractions that occur in severe tetany). Other patients have less specific symptoms such as fatigue, hyperirritability, anxiety, and depression, and some patients, even with severe hypocalcaemia, have no neuromuscular symptoms. Factors that determine the variation in frequency and severity of symptoms include acid-base status (hypocalcaemia and alkalosis act synergistically to cause tetany), hypomagnesaemia, and potassium balance.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | 5B5K.10 |
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| English | Tetany due to acute calcium deficiency |
The hallmark of acute hypocalcaemia is tetany, which is characterised by neuromuscular irritability. The symptoms of tetany may be mild (peri-oral numbness, paresthesias of the hands and feet, muscle cramps) or severe (carpopedal spasm, laryngospasm, and focal or generalised seizures, which must be distinguished from the generalised tonic muscle contractions that occur in severe tetany). Other patients have less specific symptoms such as fatigue, hyperirritability, anxiety, and depression, and some patients, even with severe hypocalcaemia, have no neuromuscular symptoms. Factors that determine the variation in frequency and severity of symptoms include acid-base status (hypocalcaemia and alkalosis act synergistically to cause tetany), hypomagnesaemia, and potassium balance. |
