期刊
VETERINARY JOURNAL
卷 166, 期 3, 页码 233-237出版社
BAILLIERE TINDALL
DOI: 10.1016/S1090-0233(02)00315-5
关键词
critical difference; C-reactive protein; haptoglobin; ceruloplasmin; dogs
The critical difference values for acute phase proteins in canine serum samples were established on a week-to-week basis. Blood samples from 11 apparently clinically healthy dogs were collected once weekly for five consecutive weeks. For each protein the total variance of analytical results was divided into intraindividual (S-Intra(2)), interindividual variance (S-Inter(2)), and analytical variance (S-Analytical(2)). The critical difference (d(K)) was then calculated as d(k) = 2root2(S-Intra(2) + S-Analytical(2)). The critical difference values were 1.95 g/L for haptoglobin, 4.85 mg/L for C-reactive protein, and 0.0 16 DeltaAbs/min for ceruloplasmin. When used in conjunction with the corresponding reference interval, critical difference values can be an aid in correctly interpreting acute phase protein results, by determining whether observed differences between two consecutive measurements in individual animals are due to natural variation or due to disease therapy or experimental procedures. (C) 2003 Elsevier Ltd. All rights reserved.
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