The EPOC analyser is useful for dogs, although clinically significant differences between the EPOC and i-STAT analysers exist for some analytes, and as such these analysers should not be used interchangeably.

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BACKGROUND: Visiting policies have been liberalized in ICUs, but the process and outcome of policy modifications have not been well described. OBJECTIVES: To describe the process by which nurses in one critical care unit modified visiting from a restricted to a liberalized (i.e., modified open) policy, and to evaluate the nurses' perceptions about visiting before and after the policy was liberalized. METHODS: A group of ICU/coronary care unit nurses met to discuss changes in their unit's visiting policy. Before the change was initiated, nurses (N = 36) in the unit were informally surveyed regarding their perceptions and attitudes about visiting. After a 3-month trial of liberalized visiting, in which visiting hours were increased at the discretion of the nursing staff, nurses (N = 32) were surveyed using a questionnaire about their beliefs, attitudes, level of satisfaction, and perceptions of their actual visiting policy. RESULTS: Nurses confirmed that the visiting policy had become liberalized, and they believed that liberalized visiting had positive effects on patients' emotional well-being. Nurses had more positive attitudes about the effects of liberalized visiting on families than on patients and unit function. Most nurses were satisfied with liberalized visiting. However, attitudes differed about how liberalized visiting affected patients' physiological responses or the unit function. CONCLUSIONS: Effective implementation of liberalized visiting depends on assessment of the following: nurses' beliefs, attitudes, and satisfaction about a change toward a more open visiting policy; staff involvement in determining the policy; and nurse manager and clinical nurse specialist support.

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Objective Attention is drawn to the potential of global warming to influence the health and wellbeing of the human race. There is increasing public and governmental pressure on healthcare organisations to mitigate and adapt to the climate changes that are occurring. The science of anaesthetic agents such as nitrous oxide and the halogenated anaesthetic agents such as greenhouse gases and ozone-depleting agents is discussed and quantified. Additional environmental impacts of healthcare systems are explored. The role of noninhalational anaesthetic pharmaceuticals is discussed, including the environmental life-cycle analyses of their manufacture, transport, disposal and use. The significant role of anaesthetists in recycling and waste management, resource use (particularly plastics, water and energy) and engagement in sustainability are discussed. Finally, future directions for sustainability in veterinary anaesthesia are proposed.Conclusions Veterinary anaesthetists have a considerable opportunity to drive sustainability within their organisations through modification of their practice, research and education. The principles of sustainability may help veterinary anaesthetists to mitigate and adapt to our environmental crisis. Due to their particular impact as greenhouse gases, anaesthetic agents should be used conservatively with the lowest safe fresh gas flow possible. Technologies for reprocessing anaesthetic agents are described.