本文为《强心甙的药理与临床应用》(刊于上期)内容的一部分。一、人体对强心甙的敏感因素(一)电解质紊乱:在低钾、低镁与高血钙时均可对强心甙敏感而导致强心甙中毒。这是由于:①强心甙引起心脏毒性反应主要是心肌细胞失钾。血钾过低则更易发生细饱失钾与强心甙中毒。但因心肌细胞失钾引起强心甙中毒时,血钾不一定减低,原因在于强 This article is “Cardiac Pharmacology and Clinical Applications” (published in the last issue) as part of the content. First, the body of the cardiac glycosides sensitive factors (A) electrolyte disorders: low potassium, low magnesium and high calcium can be sensitive to cardiac glycosides and lead to cardiac glycosides poisoning. This is due to: ① cardiac glycosides cause cardiac toxicity is mainly myocardial cell loss of potassium. Hypokalemia is more prone to loss of potassium and cardiac glycosides poisoning. However, due to myocardial cell loss of potassium cardiac glycoside poisoning, the serum potassium is not necessarily reduced, because strong