|Description||Urea is the final degradation product of proteins and amino acid metabolism. In protein catabolism the proteins are broken down to amino acids and deaminated. The ammonia formed in this process is synthesised to urea in the liver. This is the most important catabolic pathway for eliminating excess nitrogen in the body.|
|Indication||Used to evaluate renal function. Test is frequently requested in conjunction with creatinine for the differential diagnosis of prerenal, renal and postrenal uraemia.
|Additional Info||Part of U&E profile.|
|Tube||Serum or Heparin|
|Collection Conditions||Use Gold top (serum gel) tube except for Intensive care units, renal unit, transplant unit, patients on IV heparin (use Green/yellow top tube for these patients).|
|Min. Vol||1 mL|
|Ref. Range (Male)||2.5 - 7.8|
|Ref. Range (Female)||2.5 - 7.8|
|Ref. Range (Paed)|| see info below|
|Ref. Range Notes||0 - 5 wks: 0.8 - 5.5, 5 wks - 2 yrs: 1.0 - 5.5, 2 - 17 yrs: 2.5 - 6.5|
|IP Acute TAT||1 hour|
|IP Routine TAT||3 hours|
|GP Acute TAT||- Contact Laboratory|
|GP Routine TAT||24 hours|
|Turnround Comment||Minimum retest interval = 12 hours|
Originally edited by : MC. Review due on 06/10/2018 12:36:53. Published By Sylvia McLellan on 06/10/2017 12:36:53.