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HelpTest Code LAB149 C Reactive Protein
Clinical System Name
C Reactive Protein
Synonyms
LAB149
CRP
Sample Requirements
Specimen: Whole Blood
Container(s): Lt. Green/Mint Top Lithium Heparin, Lt. Green/Lithium Heparin Microtainer, Gold SST, Gold Microtainer, Dark Green/Sodium Heparin, Lavender/EDTA, Lavender/EDTA Microtainer, Red
Preferred Vol: 1.0 mL
Minimum Vol: 0.5 mL
Note: Method is affected by hemolysis.
Processing Instructions
Reject due to: Hemolysis, Age of specimen
Spin: Y
Aliquot: Y
Storage location: Core 5 Chemistry Refrigerator
Off-site collection: Avoid hemolysis. Specimen should be centrifuged within 2 hours of collection. Spin blood and transfer serum or plasma to plastic tube and refrigerate or freeze.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum or Plasma | RT |
≤ 4 h |
| Serum or Plasma | 2-8 C |
≤ 3 d |
| Serum or Plasma | -20 C or -70 C |
≤ 180 d |
Availability
| STAT | Performed | TAT |
|---|---|---|
| Y | 24/7 | 1 h |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Core Chemistry
Phone Number: 206-987-2617 (Client Services)
CPT Codes
86140
Methodology
Method: Immunorate by Vitros 4600
Analytical Volume: 0.02 mL + 0.03 mL dead space
Reference Range
| All Ages |
≤ 0.8 mG/dL |
Description
CRP is synthesized by the liver and is one of the acute phase proteins. CRP concentration measurements are useful in the detection and evaluation of inflammatory disorders, tissue injury, and infections.