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钙是神经肌肉组织的功能完整性的必要条件。当血中钙浓度低于正常时可形成严重的生理功能的紊乱,这就叫做“低钙痉挛”,其特点是神经及肌肉组织的兴奋性升高。最常见到的症状是手足搐搦、喉头痉挛和惊厥。因此,钙盐为低钙痉挛之直接特效药。为了控制轻症或控制潜伏期的手足搐搦,采用口服给药法已经够了;在情况较严重的手足搐搦时,用静脉注入给药法可使症状顺利地得到控制。对低血钙引起的手足搐搦症,一般不能使用注射硫酸镁治疗。因为钙与镁在生埋功能上虽有类同之处,如血
Calcium is a necessary condition for the functional integrity of neuromuscular tissues. When the blood calcium concentration is lower than normal can form a serious physiological disorder, which is called “calcium spasm”, which is characterized by increased excitability of nerves and muscle tissue. The most common symptoms are tetany, laryngospasm and convulsions. Therefore, calcium salt is a direct effect of calcium spasm drug. Oral administration is sufficient to control mild or prolonged tetany, and in cases of severe tetany, intravenous administration can be used to smooth out the symptoms. Tetani caused by hypocalcemia, generally can not be treated with magnesium sulfate injection. Because of the similarities between calcium and magnesium in the burial function, such as blood