Preparation Preparation

Animals should be fasted for 12 hours, with water being withdrawn 1-2 hours beforehand. Water deprivation in old animals can precipitate a uraemic crisis so overnight deprivation is not recommended if there is evidence of renal incompetence and an i.v. fluid line should be established before the administration of a sedative or anaesthetic.

All patients should be weighed before computation of drug dosages to avoid errors. If the animal is obese the lean body weight should be estimated