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血清钙水平下降低于正常值下限2.2mmol/1时称为低钙血症。这时可能存在甲状旁腺激素(PTH)缺乏(甲状旁腺功能减退症),或PTH调节障碍性释放增多(继发性甲状旁腺功能亢进症)而对靶器官无作用,例如在维生素D代谢紊乱(佝偻病)或肾功能不全时。
Serum calcium levels lower than the lower limit of normal 2.2mmol / 1 is called hypocalcemia. There may be parathyroid hormone (PTH) deficiency (hypoparathyroidism) or increased PTH-regulated disorder (secondary hyperparathyroidism) with no effect on target organs at this time, for example in vitamin D Metabolic disorders (rickets) or renal insufficiency.