Abstract: With the intention of decreasing emergency department demand, there has been a focus on determining those patients who do not require the services of the emergency department so they can be redirected away to an alternative health care provider or facility. Co-locating an after-hours primary health care facility near to the emergency department is a model under consideration in some district health boards. This model suggests that a substantial proportion of the patients currently managed in the emergency department can be assessed and managed in a general practice setting. It is envisaged that by redirecting the lower acuity patients away from the emergency department, overcrowding will be relieved. This is despite evidence demonstrating that low acuity patients are not the cause of emergency department overcrowding. Moreover, being treated at the emergency department is the only safety net for many people in the community who cannot afford alternative care. This research report discusses the literature regarding the practice of referring or redirecting patients away from the emergency department and the issues associated with this model. In doing this, it looks at the Australasian Triage Scale, the system used to ensure patients are seen in order of clinical urgency, because it has been suggested that this system could be used as a tool to refer patients away from the emergency department. The author concludes that even though some people could be seen by another health care provider, the triage system is not an appropriate tool for achieving this. While it is tempting to believe that patients in the lower triage categories are prime candidates for being referred away, there is evidence from hospital statistics that patients in these categories have a high number of hospital admissions and in-hospital death rates. Additionally, to complicate matters, there is no universal definition of what constitutes an 'appropriate' emergemcy department presentation and no consensus of opinion amongst health professionals in deciding patients' 'appropriateness'. For these reasons it is unethical to expect nurses who administer the triage system to use it for the purpose of referring people away from the emergency department.

Abstract: A retrospective descriptive design was used to examine the records of all presentations to the emergency department of patients with COPD over a 3-month period to determine whether there is a subset group of people who present with hypercarbia. There were 114 presentations, amongst those there were 71 individuals, a number presenting more than once within the three months. 80% of the 71 individuals had a smoking history of which 53% were female. Of the 114 presentations, 76 had arterial blood gases taken during their emergency department presentation. Of these 76 presentations 30 had hypercarbia and 46 were non-hypercarbia. These 76 presentations involved 58 individuals, with some individuals presenting five times over the three-month period. Three groups emerged, some who were only hypercarbia (n= 18), some in the non-hypercarbia group (n=35) and 5 individuals who had presentations in both the hypercarbia and non-hypercarbia groups. Data showed that there was no definable subset group of hypercarbia patients within acute exacerbations of COPD presenting to the emergency department according to the variables. However the sample of presentations (with a blood gas) found within the study suffering hypercarbia was much higher (31.1%) than anticipated. Further analysis showed that the hypercarbia group had a significant lower forced expiratory volume in one second (FEV1) and a combination diagnosis of emphysema or asthma and congestive heart failure. An implication to the clinician is that identification of hypercarbia within COPD exacerbation is problematically difficult until the late signs are shown with the individual. By that time effective treatment patterns may have changed from the initial presenting problem. The author concludes that future areas of research within this field needs to lie within the community, and look at when these people start the exacerbation, what leads them to progression presentation to the emergency department, and whether these people are chronic sufferers of hypercarbia or presenting after a period of days exacerbation within their own home.