Test Directory / Urine Urea
24 hour container, urine monovette or white topped universal (no additives)
|Urine Urea and Electrolytes
|24 hour container, urine monovette or white topped universal (no additives)
|Measurement of urine urea is useful for the assessment of protein intake and/ or nitrogen balance and in the diagnosis and monitoring of kideny disease. Factors which tend to increase urea excretion include increases in glomerular filtration rate, increased dietary protein intake, protein catabolic conditions, and water diuretic states. Factors which reduce urea excretion include low protein intake and conditions which result in low urine output (eg, dehydration).
|Random or 24 Hour Urine
|No special requirements
|2 days at 15-25°C and 7 days at 2-8°C
|Inpatient: 6 hours Outpatient/ GP: 24 hours
|York and Scarborough
|250 - 570 mmol/24 hours (Quoted by the manufacturer) Reference range for random urine not available. Result should be interpreted in conjunction with serum result.