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Cerner Order Name C Reactive Protein C-REACTIVE PROTEIN (ACUTE PHASE), BLOOD

Performing Laboratory

St. Louis Children's Hospital

Lab Dept

Core Lab

Specimen Requirements

Specimen Type: Blood
Container/Tube:  
Preferred: Light green-top (lithium heparin) Vacutainer
Acceptable: green SAMPLETTE/MICROTAINER, plain red-top vacutainer®, or Gold/Red SST gel vacutainer.
Collection Volume: 1.0 mL (minimum 0.6 mL)
Patient Preparation: None
Sample Rejection: Mislabeled or unlabeled specimens.
Special Instructions: Send to lab promptly

Logistics

Test Availability: Monday-Sunday
Cut-off time: None; performed as received
Turnaround Time: Same day; 2 hours from receipt in lab
Lab Testing Section: Chemistry

Interpretive

Reference Range: <10.0 mg/L
Critical Values: None established

Limitations:

As with any assay employing mouse antibodies, the possibility exists for interference by human anti-mouse antibodies (HAMA) in the sample which could falsely lower results. In very rare cases gammopathy, in particular type IgM (Waldenstrom's macroglobulinemia), may cause unreliable results.

Methodology: Particle enhanced immuno-turbidimetric assay

Additional Information

For SLCH Laboratory use only

Lab Processing instructions: Centrifuge specimen to separate. If specimen is collected in microtainer or plain, red-top tube aliquot sample into a conical tube for testing (labeling aliquot with specimen type).
Processed Volume: 0.3 mL plasma/serum
Analyte Stability:

Ambient - unprocessed: 8 hours

PROCESSED:

Ambient: 8 hours

Refrigerated: 3 weeks
Frozen: 6 months 
Notes: Will also accept EDTA plasma (Lavender-top tube)

General Information

EPIC order name: CRP Acute Phase (EPIC Test # LAB149)
Cerner order name: C Reactive Protein
CPT Codes: 86140

LOINC Value: 30522-7

Last Reviewed

November 2024