老年人低血钾症引起的临床变化与中青年人有所不同。我院内科1977～1984年住院病人中,60岁以上患低血钾者50例,与随机抽样的中青年人也低血钾者50例作对比观察。临床资料1.老年组50例,男18例、女32例,年龄60～82岁。中青年组50例,男15例、女35例,年龄20～35岁。2.血钾的情况50例老年患者中,血钾低于2.1mmol/L者4例(8%),而50例中青年组患者中血钾低于2.1mmol/L者有14例(28%),两者差异有显著性(P<0.05 Hypokalemia in the elderly caused by clinical changes and young people are different. In our hospital from 1977 to 1984 inpatients, 50 patients with hypokalemia over the age of 60, and random sampling of young people also hypokalemia were compared for 50 cases. Clinical data 1 elderly group of 50 patients, 18 males and 32 females, aged 60 to 82 years. 50 cases of young and middle-aged group, 15 males and 35 females, aged 20 to 35 years. 2. Serum potassium in 50 elderly patients, serum potassium is lower than 2.1mmol / L in 4 cases (8%), and 50 cases of young patients with serum potassium less than 2.1mmol / L in 14 cases (28 %), The difference was significant (P <0.05