Urine osmolality

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Urine osmolality is a measure of urine concentration,[1] in which large values indicate concentrated urine and small values indicate diluted urine. In healthy individuals with restricted fluid intake, urine osmolality should be greater than 800mOsm/kg, while a 24-hour urine osmolality should average between 500 and 800 mOsm/kg and a random urine osmolality should be 50 to 1400 mOsm/kg .