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Test Code Billings Clinic: 4649 C-Reactive Protein, High Sensitivity (hs-CRP), Plasma or Serum

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

  • Assessment of risk of developing myocardial infarction in patients presenting with acute coronary syndromes
  • Assessment of risk of developing cardiovascular disease or ischemic events in individuals who do not manifest disease at present

Note: Screening the entire adult population is not recommended. Acute coronary syndrome management should not depend on CRP measurements. CRP is not a substitute for traditional cardiovascular risk factors. CRP is also increased in injury, fever, and infection.

Methodology

Turbidimetric/Immunoturbidimetric
 

Specimen Requirements

Submit only 1 of the following specimens:

Serum or plasma should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.

 

Plasma

  • Draw blood in a green-top (lithium heparin) tube(s).
  • Spin down and send 0.5 mL of heparinized plasma frozen.

 

Serum

  • Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
  • Spin down and send 0.5 mL of serum frozen

Storage/Stability

Specimen Type Temperature Time
Plasma, Serum Refrigerated 3 days
  Frozen (preferred) 6 months

 

Reject Due To

  • Specimens received outside of the required storage and stability requirements

Reference Values

<1.0 mg/dL

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

86141 - C-reactive protein; high sensitivity (hsCRP)

LOINC Code Information

Reporting Name LOINC Code
hsCRP 30522-7