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Table 3 Linearity and recovery rates of CRP measurements at a lower concentration range of 0.8–66.5 mg/l obtained after serial dilution of a canine serum sample containing 66.5 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%)

0.0125

0.8

0.3

36.1

−63.9

No

No

0.025

1.7

2.0

122.5

22.5

Yes

No

0.05

3.3

3.3

98.4

−1.6

Yes

Yes

0.1

6.7

6.4

95.7

−4.3

Yes

Yes

0.2

13.3

11.2

84.3

−15.7

Yes

Yes

0.4

26.6

26.2

98.6

−1.4

Yes

Yes

0.6

39.9

38.1

95.6

−4.4

Yes

Yes

0.8

53.2

55.3

103.9

3.9

Yes

Yes

1

66.5

65.9

99.2

−0.8

Yes

Yes

  1. For quality specifications regarding recovery rate and % bias, see Table 2.