URINE Period ru. Hrs Volume nk ml Urine Sodium 87 mmol/L Urine Sodium Excretion mmol/D ( 75-300 ) Urine Potassium 81 mmol/L Urine Potassium Excretion mmol/D ( 40-100 ) Urine Osmolality 612 mmol/L ( 50-1200 )