Urine osmolality in the elderly.

Parlindungan Siregar, Siti Setiati

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


AIM: Investigation was done in the institutionalized elderly in order to know the value of urine osmolality in this population. METHODS: Cross sectional study was done in the government institutionalized elderly that localized in South Jakarta. By using simple random sampling, 50 elderly people were chosen from all of the residents in this institutionalized elderly aged more than 60 years. They were excluded if they had diabetes mellitus, abnormal cortisol (reference range of morning cortisol, 5-25 ug/dL), potassium less than 3 meq/L, chronic diarrhoe, congestive heart failure, nephrotic syndrome, and cirrhosis of the liver, and also if they were in manitol or diuretic treatment, and not cooperative. All of these data were analyzed with descriptive analysis and comparative T-test of two non-related groups. RESULTS: There were 28 elderly peoples consisted of 13 males and 15 females participated in this study. The mean of the urine osmolality was 581 +/- 174 mosmol/Kg. The mean of the urine osmolality in the female group (657.33 +/- 126.54 mosmol/kg) was significantly higher than in the male group (p = 0.01). CONCLUSION: The urine osmolality in the elderly is high and the so-called normal value is 407-755 mosmol/Kg. Further study is needed to investigate the lowest urine osmolality value as the diagnostic tool of hyponatremia due to water excretion disorder in the elderly.

Original languageEnglish
Pages (from-to)24-26
Number of pages3
JournalActa medica Indonesiana
Issue number1
Publication statusPublished - Jan 2010


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