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Epic Code LAB150 C Reactive Protein (CRP), High Sensitive, Blood Level

Test Name Alias

C Reactive Protein Ultrasensitive Blood Level | CRP Ultrasensitive | High Sensitivity CRP | 4219 CRP Cardiac

Interface Order Alias


Ordering Instructions

This test recommended for cardiovascular risk assessment only

Collection Instructions

Specimen Collection: Blood


Container(s): 4.5 mL Mint Green Top (Lithium Heparin Gel) or 5.0 mL Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 4.5 mL

Minimum Volume to Collect: 1.0 mL

Neonate Volume to Collect: 0.5 mL

Capillary collect ok? Yes

Microtainer acceptable: Yes


Collection Instructions:

  • After collection, gently invert tube 8-10 times.
  • Specimen should be processed within 2 hours – See Processing Instructions.


Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Plasma or Serum
  • Centrifuge/Spin: Yes
  • Aliquot: Yes
  • Processing Instructions:
    • Plasma is preferred specimen type
    • Green Tube/Plasma: Centrifuge after collection.
    • Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
  • Transport Temperature: Refrigerate

Specimen Stability

Ambient: 12 hours

Refrigerate: 72 hours

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available 24 hours, usual TAT 1 day.

Reference Range

Relative Risk of Cardiovascular Disease:

Risk Range
Low <1.00 mg/L
Average 1.00 – 3.00 mg/L
High >3.00 mg/L
Acute phase response   >10.00 mg/L


Performing Department


Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI





CDM Code


Epic Test ID



Ultrasensitive CRP: 30522-7

Mayo Access Code


Reviewed Date