本文比较了不同年龄的健康人和慢性肾炎肾功能正常者和肾功能衰竭者的晨尿渗透压测定值，以求了解其临床意义。一、材料和方法1．对象健康人57名，包括中青年组（A组15～59岁）30名，老年组（B组60～78岁）27名；慢性肾炎94例，同样按年龄分A、B组，又按肾功能正常者36例分A组2 This article compared the different ages of healthy people and patients with chronic nephritis with normal renal function and renal failure, morning urine osmolarity measured in order to understand the clinical significance. First, materials and methods 1. A total of 57 healthy subjects were enrolled, including 30 middle-aged and young adults (aged 15-59 years) and 27 elderly patients (aged 60-78 years). Chronic nephritis was also classified into groups A and B according to age 36 cases of normal renal function group A 2