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HelpTest ID CRP C-Reactive Protein (CRP), Serum
Useful For
Detecting systemic inflammatory processes
Detecting infection and assessing response to antibiotic treatment of bacterial infections
Differentiating between active and inactive disease forms with concurrent infection
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumOrdering Guidance
To assess the risk of cardiovascular disease or events using C-reactive protein, order HSCRP / C-Reactive Protein, High Sensitivity, Serum.
Necessary Information
Indicate patient's age and sex
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. Serum gel tube should be centrifuged within 2 hours of collection.
2. Red-top tube should be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 21 days |
| Frozen | 365 days | |
| Ambient | 14 days |
Reference Values
<5.0 mg/L
Reference values apply to all ages.
Day(s) Performed
Monday through Sunday
CPT Code Information
86140
Report Available
Same day/1 to 3 daysReject Due To
| Gross hemolysis | Reject |