Comparative study of parameters of acidbase balance in venous and arterialized capillary blood of calves.

Study was carried out on 16 clinically healthy calves at ages of 3- 6 months. The parameters of acid-base balance (pH, pCO2, pO2, HCO3, TCO2, ABE, SBE, SBC, SAT, O2 capacity) were measured simultaneously in venous and arterialized capillary blood. The results from the study revealed that the mean, minimum and maximum values of pH, pO2, ABE, SAT and O2 capacity were lower in the venous blood while those of pCO2, HCO3, and TCO2 are higher that in the arterialized capillary blood. Wider differences were recorded in the values of the respiratory parameters of venous and arterialized capillary blood. The differences found in the value of the parameters of acid-base balance between both kinds of blood revealed the restricted informative significance of the venous blood. This calls for the use of arterialized capillary blood when it is necessary to assess the acid-base balance.