低钾血症(hypoklalemia)是一种常见的电解质紊乱,是指血清钾3.5mmol/L的一种病理生理状态。低钾血症最突出的表现是四肢酸软无力,出现不同程度的神经、肌肉系统的松弛软瘫,尤以下肢最为明显,严重时还会伴有心血管系统的功能障碍,如胸闷、心悸,甚至可出现呼吸肌麻痹、呼吸困难 Hypokalemia is a common electrolyte disorder that refers to a pathophysiological state of serum potassium 3.5 mmol / L. Hypokalemia is the most prominent manifestations of limb weakness, there are varying degrees of nerve, muscle system of relaxation of soft paralysis, especially in the lower limbs most obvious, severe cases will be accompanied by cardiovascular system dysfunction, such as chest tightness, palpitations, and even Respiratory muscle paralysis can occur, breathing difficulties