Aiming to evaluating some conditions of EDTA 10% serum and plasma storage for urea and creatinine values determinations in canines as well as analyzing the possibility of serum substitution by plasma, a total of 3600 samples (1800 serum and 1800 of plasma) were analyzed at room, refrigeration and freezing temperatures. Different time intervals were used in the analysis: immediately after sampling (time 0), and at 2, 6, 12, 24, and 72 hours, and 30 and 60 days after the blood collection. The data showed that urea remains conserved for more time in the refrigerated serum sample until 30 days and the creatinine in the frozen serum sample until 72 hours. Serum showed more stability than plasma in all storage conditions established.
Dog; urea; creatinine; conservation
