C-reactive protein

Alphabetical Test listing

C-reactive protein-674

  
C-reactive protein
  
674
  
86140.0
  
CRP
  

CRP is a nonspecific acute phase reactant used as an indicator of infectious disease, stress, inflammatory states, trauma and surgery.

  

Fasting specimen preferred

Fasting for a blood test

  
Lithium heparin (Li hep) plasma
  
  
1.0 mL
  
0.2 mL
  

Spin

  

Lt green plasma separator (PST)

  
Serum
Sodium heparin (Na hep) plasma
EDTA plasma
  

Gold - Spin

Dk green/lavender - Spin and separate

  

Gold serum separator (SST) tube

False bottom plasma/serum transport vial/tube (AHL)

  

Refrigerated (preferred) - 7 days

Ambient - 7 days

Frozen - 3 years

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis (some procedures)
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)
  
AHL - Chemistry: C
  
Daily
  
1 day
  

Turbidometic

  

<0.5 mg/dL

  

Progressive increases correlate with increases of inflammation/injury. CRP is a more sensitive and rapidly responding indicator than ESR. CRP may be used to detect early post-operative wound infections and neonatal infections. It may also be used to follow therapeutic response to anti-inflammatory agents. In addition, it may be helpful in evaluating extension or reinfarction after myocardial infarction. CRP can also be useful to differentiate between Crohn's disease (high CRP) from ulcerative colitis (low CRP), and rheumatoid arthritis (high CRP) from uncomplicated lupus (low CRP).

  
86140
  
11/30/2001
  
08/27/2018
  
02/10/2020