The Leeds Teaching Hospitals NHS Trust

Urea

Urea

Urea is measured as part of the U&E profile to evaluate renal function. It can be used in conjunction with creatinine for the differential diagnosis of pre-renal, renal and post-renal uraemia.

Tube 01 (SE) - Serum Gel
ID Tests&Tubes0130
Additional Information 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 converted to urea in the liver. This is the most important catabolic pathway for eliminating excess nitrogen in the body.
Turn Around A&E: N/A
Day Case: N/A
In-Patient: 6 Hours
Out-Patient: 24 Hours
GP: N/A
Send to Blood Sciences Cross Site
Contact For further details please contact Leeds Pathology customer services: leedsth-tr.pathologycustomerservice@nhs.net.
Collection Con Intensive care units, renal unit, transplant unit, patients on IV heparin use lithium-heparin (Green with Yellow ring) tube.
Instructions for Lab Staff: Standard lab processing - No special requirements.
Sample REQ Blood
Ref. Range Notes Blood Sciences Refernce ranges available through the useful information and links page:
https://www.leedsth.nhs.uk/a-z-of-services/pathology/blood-sciences/useful-information-and-links/
Units mmol/L
Telepath URE2L