Protein Urine

Description: 
For assessment of proteinuria
Clinical details: 
To detect and identify proteinuria, NICE (CG182: Chronic kidney disease) recommends the use of urine ACR in preference to protein:creatinine ratio (PCR), because it has greater sensitivity than PCR for low levels of proteinuria. However, in patients with CKD, for quantification and monitoring of levels of proteinuria of ACR 70mg/mmol or more, PCR can be used as an alternative. ACR remains the recommended method for people with diabetes.
Related condition or disease: 
Proteinuria
Reference range: 

See Chemistry Reference Ranges Document at Automated Chemistry Laboratory at Guy's and St Thomas'

Synonyms or keywords: 
PCR
Units: 
g/L
Department: 
Blood Sciences Department
Location: 
Guy's Hospital
St Thomas' Hospital
Sample type and Volume required: 
30mL aliquot from 24 hour collection
Turnaround time: 
1 day
Criteria for acceptance / rejections of sample
Storage and transport: 
30mL aliquot from 24 hour collection
Time limit for extra tests: 
Urine protein:creatinine ratio (PCR) will be calculated when both urine protein and urine creatinine are requested.
Contacts:
Blood Sciences Department-Guy's And St Thomas' Hospital
St Thomas' Hospital
North Wing - 5th Floor
Westminster Bridge Road
London SE1 7EH
Contact: 020 7188 9247

Guy's Hospital
Southwark Wing - 4th Floor
Great Maze Pond
London SE1 9RT
Contact: 020 7188 4781
Automated Chemistry Laboratory at Guy's and St Thomas' Clinical Advisory Service
Monday – Friday, 09:00-17:00 h: 07738897061
Out of hours, weekends & bank holidays: find details on Rotawatch on Trust intranet GTi, or contact via GSTT switchboard.
For clinical advice or interpretation of results, please contact the laboratory in the first instance.
Laboratory: 
Automated Chemistry Laboratory at Guy's and St Thomas'

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Last updated: 19/01/2022