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Laboratory Medicine

Test catalogue

C-Reactive Protein

Test Name

C-Reactive Protein (High Sensitivity CRP, CRP)

Gold Tube Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Volume = 1 ml serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Collect sample in Serum with or without gel separator and EDTA or Lithium heparin plasma. Write your initials, date and time of collection on the collection label or requisition.

Special Instructions Separate serum or plasma from cells within 2 hours of collection

Rejection Criteria: Gross hemolysis,lipemic, Unlabeled or Not Sufficient Quantity Samples will be rejected.

Stability: CRP is stable at room temperature for 2 days, refrigerated for 2 month at 2–8°C and frozen at -15C to -20C for 1 year.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

1Hr STAT and 2Hrs Routine

Test Utilization

Reference Value

0.00-5.00 mg/L Cardiovascular Risk Assessment:

Low Risk: < 1.0 mg/LAverage Risk: 1.0-3.0 mg/L

High Risk: > 3.0 mg/L

Over 10 mg/L is consistent with an acute phase response to inflammation.

Test Code



Spectrophotometric (Kinetic rate method)

Testing Location


Other Information

Last Updated: June 06, 2019