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Table 2 Laboratory examinations

From: Diagnostic value of blood inflammatory markers for detection of acute appendicitis in children

Parameter Abbreviation Method Reference range
White blood cell count WBC Hematological Counter (Beckman-Coulter, Krefeld) 4.3 – 10.8 × 103/μl
Erythrocyte sedimentation rate ESR ESR tube (Sarstedt, Homburg) < 10 mm/h
C-reactive protein CRP BN-2 (Behring, Marburg) < 10 mg/l
Interleukin-6 IL-6 ELISA (R&D Systems, Minneapolis, U. S. A.) < 5 pg/ml
Tumor necrosis factor-α TNF-α   < 5 U/ml
Acid α1-glycoprotein α1GP Radial immunodiffusion, (Behring) 0.5 – 1.2 g/l
Endotoxin ET Limulus Amebocyt Lysate (Bio Whittaker, Walkersville, U. S. A.) < 10 pg/ml