C-Reactive Protein, Plasma

From Taranaki Lab Manual

Tests:C-Reactive Protein, Plasma
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Overview

Department Biochemistry
Test Code PCRP
Synonyms CRP 
Test Availability Monday - Sunday, testing routinely available out of hours
Turnaround Time 1 hour urgent - 2 hours routine  
Stability – Add test 3 days

Specimen Requirements

Specimen Type Serum

Plasma

Specimen Transportation
Preferred 4 mL Li-Hep Green-Top
Acceptable 6 mL Plain Red-Top
Unacceptable
Paediatric Requirements 600µL Li-Hep Microtainer Paediatric tube 

Aliquot Requirements

Sample Type
Preferred Volume >0.1 mL
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.