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Test Code CRP/LAB149 C-Reactive Protein (for Inflammation Monitoring)

Performing Laboratory

Asante Rogue Regional Medical Center / Asante Three Rivers Medical Center / Asante Ashland Community Hospital

Specimen Requirements

Yellow (Gold) top tube (SST)  

Lithium Heparin Green top tube

Plain Red top tube

 

Outpatient clients MUST draw SST

Specimen Transport Temperature and Stability

Centrifuge collection tube and refrigerate within 2 hours of collection

Primary tube: Spun SST stable 24 hours at  2° to 8° C

Serum stable 48 hours if aliquoted and refrigerated at 2° to 8° C

Specimen Minimum Volume

0.5 ml

Reasons for Rejection

Icterus

Lipemia

Hemolysis

Quantity not sufficient (QNS)

Lack of Two Patient Identifiers:

         1-Patient's First & Last name 

         2-Patient's Date of Birth

Day(s) Test Set Up

Monday through Sunday

Routine – same day

ASAP – 2 hours after receipt of specimen in lab

STAT – 1 hour after receipt of specimen in lab

Additional Information

Blood levels of C-Reactive Protein (CRP) are known to rise rapidly from normal baseline levels of often <0.3 mg/dL to as high as 50.0 mg/dL as part of the body’s nonspecific inflammatory response to infection or injury. In more recent years, the utility of measuring CRP has expanded from its historical use as a sensitive marker of acute inflammation to include assessment of cardiac events and risk (See CRPHS for test explanation).


*Note: By local clinician demand, this test is reported in mg/dL, as opposed to the Cardiac Risk Assessment, which is reported in mg/L.


Note:  For cardiac risk assessment, see CRPHS

Methodology

Near Infrared Particle Immunoassay

Performing Department

Chemistry

Test Classification and CPT Coding

86140  -  C-reactive protein

Billing Code

2010080