Sign in →

Test Code 0541 C-Reactive Protein (CRP)

Performing Laboratory

Barnes-Jewish Hospital Laboratory


Particle enhanced immunoturbidimetric assay

Literature References:
Package insert: Cardiac C-reactive protein CRPHS. Roche Corporation 08/2013.

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Mint green top

Specimen Volume: Full tube


Day(s) Test Set Up

Monday through Friday
Turnaround Time:
STAT: not available
Routine: results available 2-4 hours of receipt

Reference Values

Normal: <10 mg/L
This test is useful in the detection of systemic inflammatory processes, detection of infection, assessing response to antibiotic treatment of bacterial infections and differentiating between active and inactive disease forms with concurrent infection.

Literature Reference:

Tietz Fundamentals of Clinical Chemistry, 5th Edition, Editors: Burtis CA and Ashwood ER, Chapter 27, p. 789. W.B. Saunders Company, 2014

Test Classification and CPT Coding


Additional Information

Minimum Volume:1.5 mL of serum
Alternate Tube:

1 full plain red top

Analyte Stability:

Store serum at 2o C to 8o C for up to 8 days. For longer storage or shipment, specimen should be frozen at -20o C.

Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days.

Specimen Transport Temperature


LOINC Code Information

Name LOINC Code
C reactive protein 1988-5