Studies on Species Variation of Blood Sedimentation in Domestic Animals

4. Influence of Measurement Temperature upon Erythrocyte Sedimentation

Abstract

In order to ascertain the influence of measurement temperature upon erythrocyte sedimentation rate (ESR for short) in domestic animals, the variation rate with the chahge of measurement temperature were calculated;
Temperature variation rate =Average ESR in 25°C-Average ESR in 15°C/25-15 (mm)
The results obtained are shown in Fig. 1 in Japanese text. The temperature variation rate increased to maximum value and then decreased. The correlation between the erythrocyte sedimentation types and the temperature variation rate is shown in Fig. 2. The appearance of the maximum point was delayed by the change of sedimentation types from acceleration types to retardation types (Table 1). The change of the temperature variation rate seems to be in close connection with the erythrocyte sedimentation types.
Moreover, the variation ratio with the change of 10°C in measurement temperature were calculated;
Temperature variation ratio =Temperature variation rate/Average ESR in 20°C×100×10 (%)
The results obtained are shown in Table 2 and Fig. 3 and 4.
The influence of the measurement temperature upon the erythrocyte sedimentation in domestic animals are so great that the sedimentation rate should be measured at constant temperature.