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Table 2 Linearity and recovery rates of CRP measurements in a clinically relevant range of 7.0–281.3 mg/l after serial dilution of a canine serum sample containing 281.3 mg/l CRP

From: Evaluation of a species-specific C-reactive protein assay for the dog on the ABX Pentra 400 clinical chemistry analyzer

Dilution Factor

Expected concentration [mg/l]

Mean measured concentration[mg/l]

Recovery [%]

Bias[%]

% bias < TEdes (29.6%)

% bias < TEopt (14.8%)

0.025

7.0

6.9

97.6

−2.4

Yes

Yes

0.05

14.1

12.5

88.9

−11.1

Yes

Yes

0.1

28.1

26.1

92.9

−7.1

Yes

Yes

0.2

56.3

54.1

96.1

−3.9

Yes

Yes

0.4

112.5

112.3

99.8

−0.2

Yes

Yes

0.6

168.8

172.3

102.1

2.2

Yes

Yes

0.8

225.0

237.3

105.4

5.4

Yes

Yes

1

281.3

286.2

101.7

1.7

Yes

Yes

  1. Recovery rates not fulfilling the quality specifications of 80–120% are marked in bold letters as well as % bias between expected and measured mean CRP concentration exceeding the desired (TEdes) and optimal total allowable error (TEopt) reported previously [32].