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HelpTest Code LAB150 C-Reactive Protein (CRP), High Sensitivity - Cardiac
Department
CHEMISTRY
Primary Collection Container
Green PST (Lithium Heparin)
Alternate Collection Container
Green Microtainer PST
Transport
Refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Centrifuge and refrigerate.
Separate from cells if testing is delayed more than 2 hours.
Stability
Refrigerated: 72 hours
Frozen: 3 years
Minimum Testing Volume
0.5 mL
Reference Range
<2.0 mg/dL
Methodology
Roche c503 Particle-enhanced immunoturbidimetric assay
Performed
Sunday – Saturday
Reported
As completed
CPT Codes
86141
Unacceptable Conditions
Gross hemolysis.
Additional Information
CRP values are known to fluctuate in both stable heart disease and in healthy individuals. Extrapolation of CRP data from selective clinical studies to the broad clinical setting may be problematic when attempting to stratify coronary risk from a single CRP value. Multiple measurements of CRP and correlation with other clinical measurements of cardiac risk is recommended.