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22476 C-Reactive Protein

C-Reactive Protein
Test Code: CRP
Useful For
C-Reactive Protein is for monitoring acute inflammatory conditions​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​No Plasma/Serum​ Lithium-heparin Plasma Separator (PST)​, Serum Separator Tube (SST) Lithium or Sodium-heparin Green Top (GTT), Red Top Tube (RTT) 1 mL​ 0.3 mL​ ​
Collection Processing Instructions
PST/SST gel barrier tubes should be centrifuged within 2 hours of collection.
RTT should be centrifuged and aliquoted within 2 hours of collection.
Specimen Stability Information
Specimen Type Temperature Time
Plasma​/Serum ​ Refrigerate​ 72 hours​
Frozen​ >72 hours​
Rejection Criteria
Frozen samples thawed more than once
​Samples not removed from contact with cells within 2 hours of collection
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Chippewa Falls​ ​Monday through Friday ​Less than 2 hours​ ​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
Marshfield​ Monday through Sunday​ Less than 2 hours​ Latex Particle Immunoturbidimetric Fixed Assay/Beckman AU
​Merrill ​Monday through Sunday ​Less than 2 hours ​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Neillsville​Monday through Sunday​​Less than 2 hours​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
Stevens Point​ ​Monday through Sunday ​Less than 2 hours ​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Wausau ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
Test Information
For assessing inflammation - NOT coronary risk. For assessing coronary risk, order C-Reactive Protein, High Sensitivity. CSF is not an appropriate specimen, as this test is not sensitive enough to concentrations of CRP found in CSF (approx. 10-fold lower than serum concentrations).​
Reference Range Information
Performing Location Reference Range
All Performing Sites <=1.0 mg/dL​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86140   ​ ​ ​ ​ ​
Ordering Applications
Ordering Application Description
​Centricity

​a. C-Reactive Protein (CRP)

b. CRP(C-Reactive Protein)

​Cerner C-Reactive Protein​
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​No Plasma/Serum​ Lithium-heparin Plasma Separator (PST)​, Serum Separator Tube (SST) Lithium or Sodium-heparin Green Top (GTT), Red Top Tube (RTT) 1 mL​ 0.3 mL​ ​
Collection Processing
PST/SST gel barrier tubes should be centrifuged within 2 hours of collection.
RTT should be centrifuged and aliquoted within 2 hours of collection.
Specimen Stability Information
Specimen Type Temperature Time
Plasma​/Serum ​ Refrigerate​ 72 hours​
Frozen​ >72 hours​
Rejection Criteria
Frozen samples thawed more than once
​Samples not removed from contact with cells within 2 hours of collection
Useful For
C-Reactive Protein is for monitoring acute inflammatory conditions​
Reference Range Information
Performing Location Reference Range
All Performing Sites <=1.0 mg/dL​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Chippewa Falls​ ​Monday through Friday ​Less than 2 hours​ ​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Ladysmith Medical Center ​Monday through Sunday ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
Marshfield​ Monday through Sunday​ Less than 2 hours​ Latex Particle Immunoturbidimetric Fixed Assay/Beckman AU
​Merrill ​Monday through Sunday ​Less than 2 hours ​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Neillsville​Monday through Sunday​​Less than 2 hours​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
Stevens Point​ ​Monday through Sunday ​Less than 2 hours ​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
​Wausau ​Monday through Sunday​ ​Less than 2 hours​ ​​Particle Enhanced Turbidimetric Inhibition Immunoassay (Petinia) Technique/Siemens Dimension
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86140   ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.