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C-Reactive Protein High Sensitivity (hs-CRP), Plasma or Serum

Performing Laboratory

Providence Alaska Medical Center

Methodology

Immunoturbidimetric

Specimen Requirements

Submit only 1 of the following specimens:
 
Plasma

Draw blood in a green-top (lithium heparin) tube(s). Spin down, separate plasma from cells, and send 1 mL (minimum volume:  0.3 mL) of lithium heparin plasma. If there is a delay in transport of >8 hours, send specimen refrigerated.

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

 

Serum

Draw blood in a gold-top serum gel tube(s). Spin down, separate serum from cells, and send 1 mL (minimum volume:  0.3 mL) of serum. If there is a delay in transport of >8 hours, send specimen refrigerated.

Note:  1. Indicate serum on request form.

2. Label specimen appropriately (serum).

Reference Values

Per the American Heart Association and the CDC guidelines, cardiac risk may be assessed using the high-sensitive C-Reactive Protein.

       Low risk:  <1.0 mg/L

       Average risk:  1.0-3.0 mg/L

       High risk:  >3.0 mg/L

 

Values over 10.0 mg/L, should prompt the clinician to look for other signs of infection or inflammation.

Stability

Room temp: 8 hours

Refrigerated: 4 days

Frozen: 2 months

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

86141

ETA

Estimated turnaround time 35 min