Clinics and Departments

Laboratory Services

Lab Dept:

Chemistry

Test Name:

C-REACTIVE PROTEIN (CRP)

General Information

Lab Order Codes:

CRP

Synonyms:

C-Reactive Protein Quantitative ,Plasma or Serum; CRP

CPT Codes:

86140 – C-reactive protein

Test Includes:

C-Reactive protein concentration reported in mg/dL.

Logistics

Test Indications:

C-Reactive protein is one of the acute phase proteins that may increase in an unspecific response to infection and non-infectious inflammatory processes such as rheumatoid arthritis, cardiovascular disease and peripheral vascular disease. A high sensitivity CRP may add to the predictive value of other markers used to assess cardiovascular or peripheral vascular disease. Plasma levels rise in myocardial infarction, stress, trauma, infection, inflammation, surgery, or neoplastic proliferation.

Lab Testing Sections:

Chemistry

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

4 hours

Special Instructions:

N/A

Specimen

Specimen Type:

Blood

Container:

Green top (Li Heparin) tube preferred
Alternate tube: Red top tube

Draw Volume:

0.6 mL blood

Processed Volume:

0.2 mL serum/plasma

Collection:

Routine venipuncture. Mix tubes containing anticoagulant by gentle inversion.

Special Processing:

Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into a plastic sample cup. Store at 20 – 25 degrees Centigrade for up to 8 hours, or 2 – 8 degrees Centigrade for up to 3 days..

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimen

Interpretive

Reference Range:

0 – 0.3 mg/dL

Critical Values:

N/A

Limitations:

N/A

Methodology:

Nephelometry, Siemens Dimension Vista

References:

Jacobs & DeMott Laboratory Test Handbook (2001) Lexi-Comp, Inc, Hudson, OH, 5th Edition

Bio-Rad Liquichek Lipids Control Product Insert, Bio-Rad Laboratories, Irvine, CA 92618

Siemens Dimension Vista CRP Reagent Flex Directions For Use (3/2011), Siemens Healthcare Diagnostics

Updates:

7/14/2014: Method update



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