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One-step method for catheterising the jugular vein of cats to enable repeated blood sampling

¹ Départment de Biomédicine Vétérinaire, Université de Montréal, CP 5000, St-Hyacinthe, Quebec J2S 7C6, Canada
² Départment de Sciences Cliniques, Faculté de Médicine Vétérinaire, Université de Montréal, CP 5000, St-Hyacinthe, Quebec J2S 7C6, Canada

A one-step method for catheterising the jugular vein of cats for taking multiple blood samples was developed, with the aid of radiography, to determine an appropriate internal catheter length for adult cats. The effects of multiple blood sampling and heparin flushes on the cats' haematocrit and blood total solids were also assessed. Seven healthy adult cats were used. A total of 128 of 132 (97 per cent) blood samples were collected successfully through a 19 G, 30·5 cm catheter introduced as a central venous catheter and maintained in place during two periods of 48 hours. The haematocrit and total solids were significantly decreased in all the cats, but no clinically significant blood loss or coagulation disorders were observed.