A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
hs-CRP
Test Code10124
CPT Codes
86141
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in a lithium heparin (green-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 90 days
Refrigerated: 7 days
Frozen: 90 days
Methodology
Immunoturbidimetric
Setup Schedule
Set up: Mon-Sat; Report available: 1-3 days
Limitations
Oral contraceptives, IUDs, pregnancy, and menstruation may raise hs-CRP levels. Levels are lowest during ovulation.
Reference Range
≤17 years | Not established |
>17 years | Optimal <1.0 mg/L |
For ages >17 years
hs-CRP (mg/L) |
Risk According to AHA/CDC Guidelines |
<1.0 |
Lower relative cardiovascular risk. |
1.0-3.0 |
Average relative cardiovascular risk. |
3.1-10.0 |
Higher relative cardiovascular risk. Consider retesting in 1 to 2 weeks to exclude a benign transient elevation in the baseline CRP value secondary to infection or inflammation. |
>10.0 |
Persistent elevation, upon retesting, may be associated with infection and inflammation. |
Clinical Significance
Useful in predicting risk for cardiovascular disease.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Dr
Chantilly, VA 20153