C Reactive Protein (CRP)

Description: 
Immunoturbidimetric assay for the quantitative determination of CRP in serum. CRP is considered the most useful of the “acute phase” serum markers, rising sharply 4-8 hours after tissue damage by infection, inflammation or trauma. It peaks at 24-72 hours, then returns to normal 2-3 days after disease activity has ceased (plasma half-life is quite constant at 19 hours).
Clinical details: 
Where there is uncertainty about whether symptoms are functional or due to organic disorders, CRP can be used as an indication of organic disease, for example, occult bacterial infection, suspected rheumatic fever, inflammatory bowel disease or other conditions. CRP helps identify post-operative sepsis.
Related condition or disease: 
Reference range: 

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

Units: 
mg/L
Department: 
Blood Sciences Department
Sample type and Volume required: 
Serum
Turnaround time: 
1 day
Criteria for acceptance / rejections of sample
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: 08/11/2021