C-Reactive Protein (CRP)

Test Code
4420


CPT Codes
86140

Preferred Specimen
1 mL serum 


Minimum Volume
0.5 mL


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 7 days
Refrigerated: 30 days
Frozen: 1 year


Methodology
Immunoturbidimetric

Setup Schedule
Set up: Mon-Fri; Report available: 1 day


Limitations
Oral contraceptives, IUDs, pregnancy, and menstruation may raise CRP levels. Levels are lowest during ovulation.


Reference Range
<8.0 mg/L


Clinical Significance
Increased CRP levels are found in inflammatory conditions including: bacterial infection, rheumatic fever, active arthritis, myocardial infarction, malignancies and in the post-operative state. This test cannot detect the relatively small elevations of CRP that are associated with increased cardiovascular risk.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.