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Test Code CRP C Reactive Protein

Clinical System Name

C Reactive Protein

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.

Sample Requirements

Specimen: Whole Blood

Container(s): Gold SST, Lt. Green/Li Heparin Microtainer, Dark Green/Sodium Heparin, Gold Microtainer, 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 Number206-987-2617 (Client Services)

Reference Range

All Ages

≤ 0.8 mG/dL

Methodology

Method:  Immunorate by Vitros 4600

Analytical Volume:  0.02 mL + 0.03 mL dead space

CPT Codes

86140