[Retrospective evaluation of urea and creatinine blood levels in calves with diarrhea].

Data of 393 calves treated for neonatal diarrhea as in-patients in the II. Medical Animal Clinic of the University of Munich were included in a retrospective study with special regard to the course and prognostic information of blood urea, blood creatinine, urea-creatinine-ratio, and PCV. Mean values, standard deviation and maximum values that were measured upon admission to the clinic: blood urea: 16.86 +/- 12.35; 75.70 mmol/l; blood creatinine: 260.3 +/- 204.4; 1610.2 mumol/l; urea-creatinine-ratio [both in mmol/l]: 70.28 +/- 36.38; 245.8; PCV: 41.66 +/- 9.1; 71.5% (mean +/- S.D). Even very high values for blood urea, blood creatinine, urea-creatinine-ratio, and PCV determined at admission yielded no prognostic information, but unchanged or higher urea values on the second day in the clinic were associated with a deterioration of prognosis.