C-Reactive Protein, Plasma

Overview
Department	Biochemistry
Test Code
Synonyms	CRP
Turnaround Time	1 hour urgent - 2 hours routine
Stability – Add test
Specimen Requirements
Specimen Type	Serum Plasma
Preferred	4 mL Li-Hep Green-Top
Acceptable	6 mL Plain Red-Top
Specimen Transportation
Pediatric Requirements	600µL Li-Hep Microtainer Paediatric tube
Aliquot Requirements
Sample Type
Minimum Volume	50 µL
Aliquot Transportation
Clinical Information
Reference Intervals	Reference Range: <5 mg/L
Test Method	An immunoturbidometric method analysed on Abbott c8000 series analyser, with Abbott reagents.
Advanced Notice	Not required
Patient Preparation	Not required
Comments
Results below 5 mg/L rule out numerous acute inflammatory diseases but do not exclude inflammatory processes in general. Elevated CRP results up to 50 mg/L occur in the presence of slight to moderate inflammatory processes. CRP results above 50 mg/L indicate high and extensive inflammatory activity.