Name: C Reactive Protein, High Sensitivity
Test Name: C Reactive Protein, High Sensitivity
Health Link Test Code: HSCRP
LIS Test Code: HSCRP
CPT Code(s): 86141
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: 1 hour.
Collection Container: Green cap with yellow ring (PST)
Also Acceptable: Green top, Red cap with yellow ring (SST), Red top
Collection Volume: 4 mL
Pediatric Collection Volume: 0.5 mL
Sample Analyzed: Plasma or serum
Testing Volume: 0.5 mL
Pediatric Testing Volume: 0.2 mL
Centrifuge. If a complete barrier has not formed, transfer cell-free plasma/serum to clear plastic vial. Refrigerate.
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
When assessing risk of coronary heart disease, hs-CRP values should be used in conjunction with lipid values and other risk factors. Values in the 2nd and 3rd tertiles should be repeated and the average of the two values should be used for risk assessment. CRP is an acute phase reactant, so this test should not be obtained within 4 weeks of a systemic illness or myocardial infarction. Values greater than 5.0 mg/L may represent systemic inflammation.
Risk assessment: AHA/CDC Statement (Circulation 2003;107:499-511)
|Tertile 1||< 1.0 mg/L||(low risk)|
|Tertile 2||1.0-3.0 mg/L||(average risk)|
|Tertile 3||> 3.0 mg/L||(high risk)|