title: Effects of the anaesthetic/tranquillizer treatments on selected plasma biochemical parameters in NZW rabbits.
abstract: In order to assess the response of plasma biochemical parameters to anaesthesia, 40 New Zealand White (NZW) rabbits were assigned to four treatment groups (n = 10): control (1 ml i.v. saline solution), fentanyl-droperidol (FD) (0.4 ml/kg s.c. of 'thalamonal' solution; 2.5 mg/ml droperidol, 0.05 mg/ml fentanyl), ketamine (K) (10 mg/kg i.v.) with either xylazine (X) (3 mg/kg i.v.) or diazepam (D) (2 mg/kg i.v.). Blood samples were obtained from the central ear artery at six time points: before injection, and at 10, 30, 60, 120 min and 24 h after injection of the anaesthetics/saline. Plasma ALT, AST, ALP, GGT, BUN, creatinine, phosphate and potassium levels were measured by the Hitachi 747 autoanalyser. The administration of K-X increased (P < 0.05) plasma ALT (from 11.4 +/- 0.9 to 20.2 +/- 1.7 IU/l, at 10 min), AST (from 10.5 +/- 3.3 to 34 +/- 2.1 IU/l, at 120 min), BUN (from 17.2 +/- 0.9 to 25.8 +/- 1.8 mg/dl, at 60 min) and creatinine concentrations (from 1 +/- 0.1 to 1.6 +/- 0.2 mg/dl, at 10 min). After K-D administration, we observed an increase (P < 0.05) in plasma ALT (from 11.4 +/- 0.9 to 20.2 +/- 1.1 IU/l, at 10 min), AST (from 11.4 +/- 1.6 to 28 +/- 3.7 IU/l, at 10 min), BUN (from 15.8 +/- 0.8 to 30 +/- 1.5 mg/dl, at 10 min) and creatinine levels (from 1 +/- 0.08 to 2.2 +/- 0.2 mg/dl, at 120 min). No significant changes were seen in the FD group. We conclude that K-X and K-D may affect plasma concentration of select serum enzymes and biochemical parameters. These results should be taken into account when blood samples are evaluated in treated rabbits.
authors.affiliation: Departamento de Fisiología Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Spain. alfredo_gonzalez_gil@yahoo.es
authors.forename: A
authors.initials: A
authors.lastname: González Gil
authors.forename: J C
authors.initials: JC
authors.lastname: Illera
authors.forename: G
authors.initials: G
authors.lastname: Silván
authors.forename: M
authors.initials: M
authors.lastname: Illera
mesh_terms: D000759:Adjuvants, Anesthesia / Q000494:pharmacology*; D000317:Adrenergic alpha-Antagonists / Q000494:pharmacology; D000777:Anesthetics / Q000008:administration & dosage / Q000494:pharmacology*; D000818:Animals; D015415:Biomarkers / Q000097:blood; D001774:Blood Chemical Analysis; D001831:Body Temperature / Q000187:drug effects; D016292:Procedural Sedation / Q000379:methods / Q000662:veterinary*; D003975:Diazepam / Q000494:pharmacology; D004329:Droperidol / Q000494:pharmacology; D004338:Drug Combinations; D005260:Female; D005283:Fentanyl / Q000494:pharmacology; D006339:Heart Rate / Q000187:drug effects; D007275:Injections, Intravenous; D007649:Ketamine / Q000494:pharmacology; D011817:Rabbits; D012021:Reflex, Abnormal / Q000187:drug effects; D012119:Respiration / Q000187:drug effects; D014149:Tranquilizing Agents / Q000008:administration & dosage / Q000494:pharmacology*; D014991:Xylazine / Q000494:pharmacology
chemical_list: D000759:Adjuvants, Anesthesia; D000317:Adrenergic alpha-Antagonists; D000777:Anesthetics; D015415:Biomarkers; D004338:Drug Combinations; D014149:Tranquilizing Agents; D014991:Xylazine; D007649:Ketamine; D004329:Droperidol; D003975:Diazepam; D005283:Fentanyl