生理情况下,人体电解质浓度总是保持相对的稳定和平衡。正常血钾度为3.5～5.5 mmol/L,当血钾浓度超过5.5 mmol/L时,称为高血钾。当血钾过高时,因影响神经-肌肉复极过程,可有疲乏无力、四肢松弛性瘫痪,严重时呼吸肌麻痹、嗜睡等症状。因而高钾血症导致肌无力成为电生理学上一个经典案例。本文就这一病例的具体发生机制作一探讨。 Physiological conditions, the human body electrolyte concentration is always relatively stable and balanced. Normal blood potassium level 3.5 ~ 5.5 mmol / L, when the serum potassium concentration exceeds 5.5 mmol / L, known as hyperkalemia. When hyperkalemia is too high, due to the impact of nerve - muscle repolarization process, may have fatigue, paralysis of limbs relaxation, severe respiratory muscle paralysis, lethargy and other symptoms. Thus hyperkalemia lead to muscle weakness become a classic case of electrophysiology. This article on the specific mechanism of this case to make a discussion.