A STUDY ON OLIGURIC STANDARD IN THE ELDERLY

Water deprivation test was done in 44 healthy elderly persons, 26 were male, and 18 were female. They were deprived of the intake of water f or 25 hours, The results showed that the maximal renal concentration f unction both in the elderly males and females was 887 +/- 91 mmol/L an d 888 +/- 127 mmol/L respectively. The renal excretion of waste produc ts in 24 hours both in the elderly males and females was 815+170 mmol/ d and 620+132 mmol/d respectively. On the basis of point estimation, t he minimal essential urine volume per day in the elderly males and fem ales was 926 ml/d and 708 ml/d respectively, if the daily urine volume of the elderly is less than this level, then, the metabolic products generated per day can not be excreted by the kidney, and it would resu lt in disorders of internal environment, Therefore, the oliguric stand ard in elderly males and females must be less than 926 ml/d and 708 ml per day respectively.